LeetCode Contest

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Contest Rating & Badge

The contest badge is calculated based on the contest rating.

For LeetCoders with rating >=1600, If you are in the top 5% of the contest rating, you’ll get the “Guardian” badge.

If you are in the top 25% of the contest rating, you’ll get the “Knight” badge.

Level	Proportion	Badge	Rating
LV3	5%	Guardian	≥2228.90
LV2	20%	Knight	≥1842.73
LV1	75%	-	-	-

For top 10 users (excluding LCCN users), your LeetCode ID will be colored orange on the ranking board. You'll also have the honor with you when you post/comment under discuss.

Rating Predictor

If you want to estimate your score changes after the contest ends, you can visit the website LeetCode Contest Rating Predictor .

Past Contests

Weekly Contest 450

• 3550. Smallest Index With Digit Sum Equal to Index

• 3551. Minimum Swaps to Sort by Digit Sum

• 3552. Grid Teleportation Traversal

• 3553. Minimum Weighted Subgraph With the Required Paths II

Weekly Contest 449

• 3545. Minimum Deletions for At Most K Distinct Characters

• 3546. Equal Sum Grid Partition I

• 3547. Maximum Sum of Edge Values in a Graph

• 3548. Equal Sum Grid Partition II

Biweekly Contest 156

• 3541. Find Most Frequent Vowel and Consonant

• 3542. Minimum Operations to Convert All Elements to Zero

• 3543. Maximum Weighted K-Edge Path

• 3544. Subtree Inversion Sum

Weekly Contest 448

• 3536. Maximum Product of Two Digits

• 3537. Fill a Special Grid

• 3538. Merge Operations for Minimum Travel Time

• 3539. Find Sum of Array Product of Magical Sequences

Weekly Contest 447

• 3531. Count Covered Buildings

• 3532. Path Existence Queries in a Graph I

• 3533. Concatenated Divisibility

• 3534. Path Existence Queries in a Graph II

Biweekly Contest 155

• 3527. Find the Most Common Response

• 3528. Unit Conversion I

• 3529. Count Cells in Overlapping Horizontal and Vertical Substrings

• 3530. Maximum Profit from Valid Topological Order in DAG

Weekly Contest 446

• 3522. Calculate Score After Performing Instructions

• 3523. Make Array Non-decreasing

• 3524. Find X Value of Array I

• 3525. Find X Value of Array II

Weekly Contest 445

• 3516. Find Closest Person

• 3517. Smallest Palindromic Rearrangement I

• 3518. Smallest Palindromic Rearrangement II

• 3519. Count Numbers with Non-Decreasing Digits

Biweekly Contest 154

• 3512. Minimum Operations to Make Array Sum Divisible by K

• 3513. Number of Unique XOR Triplets I

• 3514. Number of Unique XOR Triplets II

• 3515. Shortest Path in a Weighted Tree

Weekly Contest 444

• 3507. Minimum Pair Removal to Sort Array I

• 3508. Implement Router

• 3509. Maximum Product of Subsequences With an Alternating Sum Equal to K

• 3510. Minimum Pair Removal to Sort Array II

Weekly Contest 443

• 3502. Minimum Cost to Reach Every Position

• 3503. Longest Palindrome After Substring Concatenation I

• 3504. Longest Palindrome After Substring Concatenation II

• 3505. Minimum Operations to Make Elements Within K Subarrays Equal

Biweekly Contest 153

• 3498. Reverse Degree of a String

• 3499. Maximize Active Section with Trade I

• 3500. Minimum Cost to Divide Array Into Subarrays

• 3501. Maximize Active Section with Trade II

Weekly Contest 442

• 3492. Maximum Containers on a Ship

• 3493. Properties Graph

• 3494. Find the Minimum Amount of Time to Brew Potions

• 3495. Minimum Operations to Make Array Elements Zero

Weekly Contest 441

• 3487. Maximum Unique Subarray Sum After Deletion

• 3488. Closest Equal Element Queries

• 3489. Zero Array Transformation IV

• 3490. Count Beautiful Numbers

Biweekly Contest 152

• 3483. Unique 3-Digit Even Numbers

• 3484. Design Spreadsheet

• 3485. Longest Common Prefix of K Strings After Removal

• 3486. Longest Special Path II

Weekly Contest 440

• 3477. Fruits Into Baskets II

• 3478. Choose K Elements With Maximum Sum

• 3479. Fruits Into Baskets III

• 3480. Maximize Subarrays After Removing One Conflicting Pair

Weekly Contest 439

• 3471. Find the Largest Almost Missing Integer

• 3472. Longest Palindromic Subsequence After at Most K Operations

• 3473. Sum of K Subarrays With Length at Least M

• 3474. Lexicographically Smallest Generated String

Biweekly Contest 151

• 3467. Transform Array by Parity

• 3468. Find the Number of Copy Arrays

• 3469. Find Minimum Cost to Remove Array Elements

• 3470. Permutations IV

Weekly Contest 438

• 3461. Check If Digits Are Equal in String After Operations I

• 3462. Maximum Sum With at Most K Elements

• 3463. Check If Digits Are Equal in String After Operations II

• 3464. Maximize the Distance Between Points on a Square

Weekly Contest 437

• 3456. Find Special Substring of Length K

• 3457. Eat Pizzas!

• 3458. Select K Disjoint Special Substrings

• 3459. Length of Longest V-Shaped Diagonal Segment

Biweekly Contest 150

• 3452. Sum of Good Numbers

• 3453. Separate Squares I

• 3454. Separate Squares II

• 3455. Shortest Matching Substring

Weekly Contest 436

• 3446. Sort Matrix by Diagonals

• 3447. Assign Elements to Groups with Constraints

• 3448. Count Substrings Divisible By Last Digit

• 3449. Maximize the Minimum Game Score

Weekly Contest 435

• 3442. Maximum Difference Between Even and Odd Frequency I

• 3443. Maximum Manhattan Distance After K Changes

• 3444. Minimum Increments for Target Multiples in an Array

• 3445. Maximum Difference Between Even and Odd Frequency II

Biweekly Contest 149

• 3438. Find Valid Pair of Adjacent Digits in String

• 3439. Reschedule Meetings for Maximum Free Time I

• 3440. Reschedule Meetings for Maximum Free Time II

• 3441. Minimum Cost Good Caption

Weekly Contest 434

• 3432. Count Partitions with Even Sum Difference

• 3433. Count Mentions Per User

• 3434. Maximum Frequency After Subarray Operation

• 3435. Frequencies of Shortest Supersequences

Weekly Contest 433

• 3427. Sum of Variable Length Subarrays

• 3428. Maximum and Minimum Sums of at Most Size K Subsequences

• 3429. Paint House IV

• 3430. Maximum and Minimum Sums of at Most Size K Subarrays

Biweekly Contest 148

• 3423. Maximum Difference Between Adjacent Elements in a Circular Array

• 3424. Minimum Cost to Make Arrays Identical

• 3425. Longest Special Path

• 3426. Manhattan Distances of All Arrangements of Pieces

Weekly Contest 432

• 3417. Zigzag Grid Traversal With Skip

• 3418. Maximum Amount of Money Robot Can Earn

• 3419. Minimize the Maximum Edge Weight of Graph

• 3420. Count Non-Decreasing Subarrays After K Operations

Weekly Contest 431

• 3411. Maximum Subarray With Equal Products

• 3412. Find Mirror Score of a String

• 3413. Maximum Coins From K Consecutive Bags

• 3414. Maximum Score of Non-overlapping Intervals

Biweekly Contest 147

• 3407. Substring Matching Pattern

• 3408. Design Task Manager

• 3409. Longest Subsequence With Decreasing Adjacent Difference

• 3410. Maximize Subarray Sum After Removing All Occurrences of One Element

Weekly Contest 430

• 3402. Minimum Operations to Make Columns Strictly Increasing

• 3403. Find the Lexicographically Largest String From the Box I

• 3404. Count Special Subsequences

• 3405. Count the Number of Arrays with K Matching Adjacent Elements

Weekly Contest 429

• 3396. Minimum Number of Operations to Make Elements in Array Distinct

• 3397. Maximum Number of Distinct Elements After Operations

• 3398. Smallest Substring With Identical Characters I

• 3399. Smallest Substring With Identical Characters II

Biweekly Contest 146

• 3392. Count Subarrays of Length Three With a Condition

• 3393. Count Paths With the Given XOR Value

• 3394. Check if Grid can be Cut into Sections

• 3395. Subsequences with a Unique Middle Mode I

Weekly Contest 428

• 3386. Button with Longest Push Time

• 3387. Maximize Amount After Two Days of Conversions

• 3388. Count Beautiful Splits in an Array

• 3389. Minimum Operations to Make Character Frequencies Equal

Weekly Contest 427

• 3379. Transformed Array

• 3380. Maximum Area Rectangle With Point Constraints I

• 3381. Maximum Subarray Sum With Length Divisible by K

• 3382. Maximum Area Rectangle With Point Constraints II

Biweekly Contest 145

• 3375. Minimum Operations to Make Array Values Equal to K

• 3376. Minimum Time to Break Locks I

• 3377. Digit Operations to Make Two Integers Equal

• 3378. Count Connected Components in LCM Graph

Weekly Contest 426

• 3370. Smallest Number With All Set Bits

• 3371. Identify the Largest Outlier in an Array

• 3372. Maximize the Number of Target Nodes After Connecting Trees I

• 3373. Maximize the Number of Target Nodes After Connecting Trees II

Weekly Contest 425

• 3364. Minimum Positive Sum Subarray

• 3365. Rearrange K Substrings to Form Target String

• 3366. Minimum Array Sum

• 3367. Maximize Sum of Weights after Edge Removals

Biweekly Contest 144

• 3360. Stone Removal Game

• 3361. Shift Distance Between Two Strings

• 3362. Zero Array Transformation III

• 3363. Find the Maximum Number of Fruits Collected

Weekly Contest 424

• 3354. Make Array Elements Equal to Zero

• 3355. Zero Array Transformation I

• 3356. Zero Array Transformation II

• 3357. Minimize the Maximum Adjacent Element Difference

Weekly Contest 423

• 3349. Adjacent Increasing Subarrays Detection I

• 3350. Adjacent Increasing Subarrays Detection II

• 3351. Sum of Good Subsequences

• 3352. Count K-Reducible Numbers Less Than N

Biweekly Contest 143

• 3345. Smallest Divisible Digit Product I

• 3346. Maximum Frequency of an Element After Performing Operations I

• 3347. Maximum Frequency of an Element After Performing Operations II

• 3348. Smallest Divisible Digit Product II

Weekly Contest 422

• 3340. Check Balanced String

• 3341. Find Minimum Time to Reach Last Room I

• 3342. Find Minimum Time to Reach Last Room II

• 3343. Count Number of Balanced Permutations

Weekly Contest 421

• 3334. Find the Maximum Factor Score of Array

• 3335. Total Characters in String After Transformations I

• 3336. Find the Number of Subsequences With Equal GCD

• 3337. Total Characters in String After Transformations II

Biweekly Contest 142

• 3330. Find the Original Typed String I

• 3331. Find Subtree Sizes After Changes

• 3332. Maximum Points Tourist Can Earn

• 3333. Find the Original Typed String II

Weekly Contest 420

• 3324. Find the Sequence of Strings Appeared on the Screen

• 3325. Count Substrings With K-Frequency Characters I

• 3326. Minimum Division Operations to Make Array Non Decreasing

• 3327. Check if DFS Strings Are Palindromes

Weekly Contest 419

• 3318. Find X-Sum of All K-Long Subarrays I

• 3319. K-th Largest Perfect Subtree Size in Binary Tree

• 3320. Count The Number of Winning Sequences

• 3321. Find X-Sum of All K-Long Subarrays II

Biweekly Contest 141

• 3314. Construct the Minimum Bitwise Array I

• 3315. Construct the Minimum Bitwise Array II

• 3316. Find Maximum Removals From Source String

• 3317. Find the Number of Possible Ways for an Event

Weekly Contest 418

• 3309. Maximum Possible Number by Binary Concatenation

• 3310. Remove Methods From Project

• 3311. Construct 2D Grid Matching Graph Layout

• 3312. Sorted GCD Pair Queries

Weekly Contest 417

• 3304. Find the K-th Character in String Game I

• 3305. Count of Substrings Containing Every Vowel and K Consonants I

• 3306. Count of Substrings Containing Every Vowel and K Consonants II

• 3307. Find the K-th Character in String Game II

Biweekly Contest 140

• 3300. Minimum Element After Replacement With Digit Sum

• 3301. Maximize the Total Height of Unique Towers

• 3302. Find the Lexicographically Smallest Valid Sequence

• 3303. Find the Occurrence of First Almost Equal Substring

Weekly Contest 416

• 3295. Report Spam Message

• 3296. Minimum Number of Seconds to Make Mountain Height Zero

• 3297. Count Substrings That Can Be Rearranged to Contain a String I

• 3298. Count Substrings That Can Be Rearranged to Contain a String II

Weekly Contest 415

• 3289. The Two Sneaky Numbers of Digitville

• 3290. Maximum Multiplication Score

• 3291. Minimum Number of Valid Strings to Form Target I

• 3292. Minimum Number of Valid Strings to Form Target II

Biweekly Contest 139

• 3285. Find Indices of Stable Mountains

• 3286. Find a Safe Walk Through a Grid

• 3287. Find the Maximum Sequence Value of Array

• 3288. Length of the Longest Increasing Path

Weekly Contest 414

• 3280. Convert Date to Binary

• 3281. Maximize Score of Numbers in Ranges

• 3282. Reach End of Array With Max Score

• 3283. Maximum Number of Moves to Kill All Pawns

Weekly Contest 413

• 3274. Check if Two Chessboard Squares Have the Same Color

• 3275. K-th Nearest Obstacle Queries

• 3276. Select Cells in Grid With Maximum Score

• 3277. Maximum XOR Score Subarray Queries

Biweekly Contest 138

• 3270. Find the Key of the Numbers

• 3271. Hash Divided String

• 3272. Find the Count of Good Integers

• 3273. Minimum Amount of Damage Dealt to Bob

Weekly Contest 412

• 3264. Final Array State After K Multiplication Operations I

• 3265. Count Almost Equal Pairs I

• 3266. Final Array State After K Multiplication Operations II

• 3267. Count Almost Equal Pairs II

Weekly Contest 411

• 3258. Count Substrings That Satisfy K-Constraint I

• 3259. Maximum Energy Boost From Two Drinks

• 3260. Find the Largest Palindrome Divisible by K

• 3261. Count Substrings That Satisfy K-Constraint II

Biweekly Contest 137

• 3254. Find the Power of K-Size Subarrays I

• 3255. Find the Power of K-Size Subarrays II

• 3256. Maximum Value Sum by Placing Three Rooks I

• 3257. Maximum Value Sum by Placing Three Rooks II

Weekly Contest 410

• 3248. Snake in Matrix

• 3249. Count the Number of Good Nodes

• 3250. Find the Count of Monotonic Pairs I

• 3251. Find the Count of Monotonic Pairs II

Weekly Contest 409

• 3242. Design Neighbor Sum Service

• 3243. Shortest Distance After Road Addition Queries I

• 3244. Shortest Distance After Road Addition Queries II

• 3245. Alternating Groups III

Biweekly Contest 136

• 3238. Find the Number of Winning Players

• 3239. Minimum Number of Flips to Make Binary Grid Palindromic I

• 3240. Minimum Number of Flips to Make Binary Grid Palindromic II

• 3241. Time Taken to Mark All Nodes

Weekly Contest 408

• 3232. Find if Digit Game Can Be Won

• 3233. Find the Count of Numbers Which Are Not Special

• 3234. Count the Number of Substrings With Dominant Ones

• 3235. Check if the Rectangle Corner Is Reachable

Weekly Contest 407

• 3226. Number of Bit Changes to Make Two Integers Equal

• 3227. Vowels Game in a String

• 3228. Maximum Number of Operations to Move Ones to the End

• 3229. Minimum Operations to Make Array Equal to Target

Biweekly Contest 135

• 3222. Find the Winning Player in Coin Game

• 3223. Minimum Length of String After Operations

• 3224. Minimum Array Changes to Make Differences Equal

• 3225. Maximum Score From Grid Operations

Weekly Contest 406

• 3216. Lexicographically Smallest String After a Swap

• 3217. Delete Nodes From Linked List Present in Array

• 3218. Minimum Cost for Cutting Cake I

• 3219. Minimum Cost for Cutting Cake II

Weekly Contest 405

• 3210. Find the Encrypted String

• 3211. Generate Binary Strings Without Adjacent Zeros

• 3212. Count Submatrices With Equal Frequency of X and Y

• 3213. Construct String with Minimum Cost

Biweekly Contest 134

• 3206. Alternating Groups I

• 3207. Maximum Points After Enemy Battles

• 3208. Alternating Groups II

• 3209. Number of Subarrays With AND Value of K

Weekly Contest 404

• 3200. Maximum Height of a Triangle

• 3201. Find the Maximum Length of Valid Subsequence I

• 3202. Find the Maximum Length of Valid Subsequence II

• 3203. Find Minimum Diameter After Merging Two Trees

Weekly Contest 403

• 3194. Minimum Average of Smallest and Largest Elements

• 3195. Find the Minimum Area to Cover All Ones I

• 3196. Maximize Total Cost of Alternating Subarrays

• 3197. Find the Minimum Area to Cover All Ones II

Biweekly Contest 133

• 3190. Find Minimum Operations to Make All Elements Divisible by Three

• 3191. Minimum Operations to Make Binary Array Elements Equal to One I

• 3192. Minimum Operations to Make Binary Array Elements Equal to One II

• 3193. Count the Number of Inversions

Weekly Contest 402

• 3184. Count Pairs That Form a Complete Day I

• 3185. Count Pairs That Form a Complete Day II

• 3186. Maximum Total Damage With Spell Casting

• 3187. Peaks in Array

Weekly Contest 401

• 3178. Find the Child Who Has the Ball After K Seconds

• 3179. Find the N-th Value After K Seconds

• 3180. Maximum Total Reward Using Operations I

• 3181. Maximum Total Reward Using Operations II

Biweekly Contest 132

• 3174. Clear Digits

• 3175. Find The First Player to win K Games in a Row

• 3176. Find the Maximum Length of a Good Subsequence I

• 3177. Find the Maximum Length of a Good Subsequence II

Weekly Contest 400

• 3168. Minimum Number of Chairs in a Waiting Room

• 3169. Count Days Without Meetings

• 3170. Lexicographically Minimum String After Removing Stars

• 3171. Find Subarray With Bitwise OR Closest to K

Weekly Contest 399

• 3162. Find the Number of Good Pairs I

• 3163. String Compression III

• 3164. Find the Number of Good Pairs II

• 3165. Maximum Sum of Subsequence With Non-adjacent Elements

Biweekly Contest 131

• 3158. Find the XOR of Numbers Which Appear Twice

• 3159. Find Occurrences of an Element in an Array

• 3160. Find the Number of Distinct Colors Among the Balls

• 3161. Block Placement Queries

Weekly Contest 398

• 3151. Special Array I

• 3152. Special Array II

• 3153. Sum of Digit Differences of All Pairs

• 3154. Find Number of Ways to Reach the K-th Stair

Weekly Contest 397

• 3146. Permutation Difference between Two Strings

• 3147. Taking Maximum Energy From the Mystic Dungeon

• 3148. Maximum Difference Score in a Grid

• 3149. Find the Minimum Cost Array Permutation

Biweekly Contest 130

• 3142. Check if Grid Satisfies Conditions

• 3143. Maximum Points Inside the Square

• 3144. Minimum Substring Partition of Equal Character Frequency

• 3145. Find Products of Elements of Big Array

Weekly Contest 396

• 3136. Valid Word

• 3137. Minimum Number of Operations to Make Word K-Periodic

• 3138. Minimum Length of Anagram Concatenation

• 3139. Minimum Cost to Equalize Array

Weekly Contest 395

• 3131. Find the Integer Added to Array I

• 3132. Find the Integer Added to Array II

• 3133. Minimum Array End

• 3134. Find the Median of the Uniqueness Array

Biweekly Contest 129

• 3127. Make a Square with the Same Color

• 3128. Right Triangles

• 3129. Find All Possible Stable Binary Arrays I

• 3130. Find All Possible Stable Binary Arrays II

Weekly Contest 394

• 3120. Count the Number of Special Characters I

• 3121. Count the Number of Special Characters II

• 3122. Minimum Number of Operations to Satisfy Conditions

• 3123. Find Edges in Shortest Paths

Weekly Contest 393

• 3114. Latest Time You Can Obtain After Replacing Characters

• 3115. Maximum Prime Difference

• 3116. Kth Smallest Amount With Single Denomination Combination

• 3117. Minimum Sum of Values by Dividing Array

Biweekly Contest 128

• 3110. Score of a String

• 3111. Minimum Rectangles to Cover Points

• 3112. Minimum Time to Visit Disappearing Nodes

• 3113. Find the Number of Subarrays Where Boundary Elements Are Maximum

Weekly Contest 392

• 3105. Longest Strictly Increasing or Strictly Decreasing Subarray

• 3106. Lexicographically Smallest String After Operations With Constraint

• 3107. Minimum Operations to Make Median of Array Equal to K

• 3108. Minimum Cost Walk in Weighted Graph

Weekly Contest 391

• 3099. Harshad Number

• 3100. Water Bottles II

• 3101. Count Alternating Subarrays

• 3102. Minimize Manhattan Distances

Biweekly Contest 127

• 3095. Shortest Subarray With OR at Least K I

• 3096. Minimum Levels to Gain More Points

• 3097. Shortest Subarray With OR at Least K II

• 3098. Find the Sum of Subsequence Powers

Weekly Contest 390

• 3090. Maximum Length Substring With Two Occurrences

• 3091. Apply Operations to Make Sum of Array Greater Than or Equal to k

• 3092. Most Frequent IDs

• 3093. Longest Common Suffix Queries

Weekly Contest 389

• 3083. Existence of a Substring in a String and Its Reverse

• 3084. Count Substrings Starting and Ending with Given Character

• 3085. Minimum Deletions to Make String K-Special

• 3086. Minimum Moves to Pick K Ones

Biweekly Contest 126

• 3079. Find the Sum of Encrypted Integers

• 3080. Mark Elements on Array by Performing Queries

• 3081. Replace Question Marks in String to Minimize Its Value

• 3082. Find the Sum of the Power of All Subsequences

Weekly Contest 388

• 3074. Apple Redistribution into Boxes

• 3075. Maximize Happiness of Selected Children

• 3076. Shortest Uncommon Substring in an Array

• 3077. Maximum Strength of K Disjoint Subarrays

Weekly Contest 387

• 3069. Distribute Elements Into Two Arrays I

• 3070. Count Submatrices with Top-Left Element and Sum Less Than k

• 3071. Minimum Operations to Write the Letter Y on a Grid

• 3072. Distribute Elements Into Two Arrays II

Biweekly Contest 125

• 3065. Minimum Operations to Exceed Threshold Value I

• 3066. Minimum Operations to Exceed Threshold Value II

• 3067. Count Pairs of Connectable Servers in a Weighted Tree Network

• 3068. Find the Maximum Sum of Node Values

Weekly Contest 386

• 3046. Split the Array

• 3047. Find the Largest Area of Square Inside Two Rectangles

• 3048. Earliest Second to Mark Indices I

• 3049. Earliest Second to Mark Indices II

Weekly Contest 385

• 3042. Count Prefix and Suffix Pairs I

• 3043. Find the Length of the Longest Common Prefix

• 3044. Most Frequent Prime

• 3045. Count Prefix and Suffix Pairs II

Biweekly Contest 124

• 3038. Maximum Number of Operations With the Same Score I

• 3039. Apply Operations to Make String Empty

• 3040. Maximum Number of Operations With the Same Score II

• 3041. Maximize Consecutive Elements in an Array After Modification

Weekly Contest 384

• 3033. Modify the Matrix

• 3034. Number of Subarrays That Match a Pattern I

• 3035. Maximum Palindromes After Operations

• 3036. Number of Subarrays That Match a Pattern II

Weekly Contest 383

• 3028. Ant on the Boundary

• 3029. Minimum Time to Revert Word to Initial State I

• 3030. Find the Grid of Region Average

• 3031. Minimum Time to Revert Word to Initial State II

Biweekly Contest 123

• 3024. Type of Triangle

• 3025. Find the Number of Ways to Place People I

• 3026. Maximum Good Subarray Sum

• 3027. Find the Number of Ways to Place People II

Weekly Contest 382

• 3019. Number of Changing Keys

• 3020. Find the Maximum Number of Elements in Subset

• 3021. Alice and Bob Playing Flower Game

• 3022. Minimize OR of Remaining Elements Using Operations

Weekly Contest 381

• 3014. Minimum Number of Pushes to Type Word I

• 3015. Count the Number of Houses at a Certain Distance I

• 3016. Minimum Number of Pushes to Type Word II

• 3017. Count the Number of Houses at a Certain Distance II

Biweekly Contest 122

• 3010. Divide an Array Into Subarrays With Minimum Cost I

• 3011. Find if Array Can Be Sorted

• 3012. Minimize Length of Array Using Operations

• 3013. Divide an Array Into Subarrays With Minimum Cost II

Weekly Contest 380

• 3005. Count Elements With Maximum Frequency

• 3006. Find Beautiful Indices in the Given Array I

• 3007. Maximum Number That Sum of the Prices Is Less Than or Equal to K

• 3008. Find Beautiful Indices in the Given Array II

Weekly Contest 379

• 3000. Maximum Area of Longest Diagonal Rectangle

• 3001. Minimum Moves to Capture The Queen

• 3002. Maximum Size of a Set After Removals

• 3003. Maximize the Number of Partitions After Operations

Biweekly Contest 121

• 2996. Smallest Missing Integer Greater Than Sequential Prefix Sum

• 2997. Minimum Number of Operations to Make Array XOR Equal to K

• 2998. Minimum Number of Operations to Make X and Y Equal

• 2999. Count the Number of Powerful Integers

Weekly Contest 378

• 2980. Check if Bitwise OR Has Trailing Zeros

• 2981. Find Longest Special Substring That Occurs Thrice I

• 2982. Find Longest Special Substring That Occurs Thrice II

• 2983. Palindrome Rearrangement Queries

Weekly Contest 377

• 2974. Minimum Number Game

• 2975. Maximum Square Area by Removing Fences From a Field

• 2976. Minimum Cost to Convert String I

• 2977. Minimum Cost to Convert String II

Biweekly Contest 120

• 2970. Count the Number of Incremovable Subarrays I

• 2971. Find Polygon With the Largest Perimeter

• 2972. Count the Number of Incremovable Subarrays II

• 2973. Find Number of Coins to Place in Tree Nodes

Weekly Contest 376

• 2965. Find Missing and Repeated Values

• 2966. Divide Array Into Arrays With Max Difference

• 2967. Minimum Cost to Make Array Equalindromic

• 2968. Apply Operations to Maximize Frequency Score

Weekly Contest 375

• 2960. Count Tested Devices After Test Operations

• 2961. Double Modular Exponentiation

• 2962. Count Subarrays Where Max Element Appears at Least K Times

• 2963. Count the Number of Good Partitions

Biweekly Contest 119

• 2956. Find Common Elements Between Two Arrays

• 2957. Remove Adjacent Almost-Equal Characters

• 2958. Length of Longest Subarray With at Most K Frequency

• 2959. Number of Possible Sets of Closing Branches

Weekly Contest 374

• 2951. Find the Peaks

• 2952. Minimum Number of Coins to be Added

• 2953. Count Complete Substrings

• 2954. Count the Number of Infection Sequences

Weekly Contest 373

• 2946. Matrix Similarity After Cyclic Shifts

• 2947. Count Beautiful Substrings I

• 2948. Make Lexicographically Smallest Array by Swapping Elements

• 2949. Count Beautiful Substrings II

Biweekly Contest 118

• 2942. Find Words Containing Character

• 2943. Maximize Area of Square Hole in Grid

• 2944. Minimum Number of Coins for Fruits

• 2945. Find Maximum Non-decreasing Array Length

Weekly Contest 372

• 2937. Make Three Strings Equal

• 2938. Separate Black and White Balls

• 2939. Maximum Xor Product

• 2940. Find Building Where Alice and Bob Can Meet

Weekly Contest 371

• 2932. Maximum Strong Pair XOR I

• 2933. High-Access Employees

• 2934. Minimum Operations to Maximize Last Elements in Arrays

• 2935. Maximum Strong Pair XOR II

Biweekly Contest 117

• 2928. Distribute Candies Among Children I

• 2929. Distribute Candies Among Children II

• 2930. Number of Strings Which Can Be Rearranged to Contain Substring

• 2931. Maximum Spending After Buying Items

Weekly Contest 370

• 2923. Find Champion I

• 2924. Find Champion II

• 2925. Maximum Score After Applying Operations on a Tree

• 2926. Maximum Balanced Subsequence Sum

Weekly Contest 369

• 2917. Find the K-or of an Array

• 2918. Minimum Equal Sum of Two Arrays After Replacing Zeros

• 2919. Minimum Increment Operations to Make Array Beautiful

• 2920. Maximum Points After Collecting Coins From All Nodes

Biweekly Contest 116

• 2913. Subarrays Distinct Element Sum of Squares I

• 2914. Minimum Number of Changes to Make Binary String Beautiful

• 2915. Length of the Longest Subsequence That Sums to Target

• 2916. Subarrays Distinct Element Sum of Squares II

Weekly Contest 368

• 2908. Minimum Sum of Mountain Triplets I

• 2909. Minimum Sum of Mountain Triplets II

• 2910. Minimum Number of Groups to Create a Valid Assignment

• 2911. Minimum Changes to Make K Semi-palindromes

Weekly Contest 367

• 2903. Find Indices With Index and Value Difference I

• 2904. Shortest and Lexicographically Smallest Beautiful String

• 2905. Find Indices With Index and Value Difference II

• 2906. Construct Product Matrix

Biweekly Contest 115

• 2899. Last Visited Integers

• 2900. Longest Unequal Adjacent Groups Subsequence I

• 2901. Longest Unequal Adjacent Groups Subsequence II

• 2902. Count of Sub-Multisets With Bounded Sum

Weekly Contest 366

• 2894. Divisible and Non-divisible Sums Difference

• 2895. Minimum Processing Time

• 2896. Apply Operations to Make Two Strings Equal

• 2897. Apply Operations on Array to Maximize Sum of Squares

Weekly Contest 365

• 2873. Maximum Value of an Ordered Triplet I

• 2874. Maximum Value of an Ordered Triplet II

• 2875. Minimum Size Subarray in Infinite Array

• 2876. Count Visited Nodes in a Directed Graph

Biweekly Contest 114

• 2869. Minimum Operations to Collect Elements

• 2870. Minimum Number of Operations to Make Array Empty

• 2871. Split Array Into Maximum Number of Subarrays

• 2872. Maximum Number of K-Divisible Components

Weekly Contest 364

• 2864. Maximum Odd Binary Number

• 2865. Beautiful Towers I

• 2866. Beautiful Towers II

• 2867. Count Valid Paths in a Tree

Weekly Contest 363

• 2859. Sum of Values at Indices With K Set Bits

• 2860. Happy Students

• 2861. Maximum Number of Alloys

• 2862. Maximum Element-Sum of a Complete Subset of Indices

Biweekly Contest 113

• 2855. Minimum Right Shifts to Sort the Array

• 2856. Minimum Array Length After Pair Removals

• 2857. Count Pairs of Points With Distance k

• 2858. Minimum Edge Reversals So Every Node Is Reachable

Weekly Contest 362

• 2848. Points That Intersect With Cars

• 2849. Determine if a Cell Is Reachable at a Given Time

• 2850. Minimum Moves to Spread Stones Over Grid

• 2851. String Transformation

Weekly Contest 361

• 2843. Count Symmetric Integers

• 2844. Minimum Operations to Make a Special Number

• 2845. Count of Interesting Subarrays

• 2846. Minimum Edge Weight Equilibrium Queries in a Tree

Biweekly Contest 112

• 2839. Check if Strings Can be Made Equal With Operations I

• 2840. Check if Strings Can be Made Equal With Operations II

• 2841. Maximum Sum of Almost Unique Subarray

• 2842. Count K-Subsequences of a String With Maximum Beauty

Weekly Contest 360

• 2833. Furthest Point From Origin

• 2834. Find the Minimum Possible Sum of a Beautiful Array

• 2835. Minimum Operations to Form Subsequence With Target Sum

• 2836. Maximize Value of Function in a Ball Passing Game

Weekly Contest 359

• 2828. Check if a String Is an Acronym of Words

• 2829. Determine the Minimum Sum of a k-avoiding Array

• 2830. Maximize the Profit as the Salesman

• 2831. Find the Longest Equal Subarray

Biweekly Contest 111

• 2824. Count Pairs Whose Sum is Less than Target

• 2825. Make String a Subsequence Using Cyclic Increments

• 2826. Sorting Three Groups

• 2827. Number of Beautiful Integers in the Range

Weekly Contest 358

• 2815. Max Pair Sum in an Array

• 2816. Double a Number Represented as a Linked List

• 2817. Minimum Absolute Difference Between Elements With Constraint

• 2818. Apply Operations to Maximize Score

Weekly Contest 357

• 2810. Faulty Keyboard

• 2811. Check if it is Possible to Split Array

• 2812. Find the Safest Path in a Grid

• 2813. Maximum Elegance of a K-Length Subsequence

Biweekly Contest 110

• 2806. Account Balance After Rounded Purchase

• 2807. Insert Greatest Common Divisors in Linked List

• 2808. Minimum Seconds to Equalize a Circular Array

• 2809. Minimum Time to Make Array Sum At Most x

Weekly Contest 356

• 2798. Number of Employees Who Met the Target

• 2799. Count Complete Subarrays in an Array

• 2800. Shortest String That Contains Three Strings

• 2801. Count Stepping Numbers in Range

Weekly Contest 355

• 2788. Split Strings by Separator

• 2789. Largest Element in an Array after Merge Operations

• 2790. Maximum Number of Groups With Increasing Length

• 2791. Count Paths That Can Form a Palindrome in a Tree

Biweekly Contest 109

• 2784. Check if Array is Good

• 2785. Sort Vowels in a String

• 2786. Visit Array Positions to Maximize Score

• 2787. Ways to Express an Integer as Sum of Powers

Weekly Contest 354

• 2778. Sum of Squares of Special Elements

• 2779. Maximum Beauty of an Array After Applying Operation

• 2780. Minimum Index of a Valid Split

• 2781. Length of the Longest Valid Substring

Weekly Contest 353

• 2769. Find the Maximum Achievable Number

• 2770. Maximum Number of Jumps to Reach the Last Index

• 2771. Longest Non-decreasing Subarray From Two Arrays

• 2772. Apply Operations to Make All Array Elements Equal to Zero

Biweekly Contest 108

• 2765. Longest Alternating Subarray

• 2766. Relocate Marbles

• 2767. Partition String Into Minimum Beautiful Substrings

• 2768. Number of Black Blocks

Weekly Contest 352

• 2760. Longest Even Odd Subarray With Threshold

• 2761. Prime Pairs With Target Sum

• 2762. Continuous Subarrays

• 2763. Sum of Imbalance Numbers of All Subarrays

Weekly Contest 351

• 2748. Number of Beautiful Pairs

• 2749. Minimum Operations to Make the Integer Zero

• 2750. Ways to Split Array Into Good Subarrays

• 2751. Robot Collisions

Biweekly Contest 107

• 2744. Find Maximum Number of String Pairs

• 2745. Construct the Longest New String

• 2746. Decremental String Concatenation

• 2747. Count Zero Request Servers

Weekly Contest 350

• 2739. Total Distance Traveled

• 2740. Find the Value of the Partition

• 2741. Special Permutations

• 2742. Painting the Walls

Weekly Contest 349

• 2733. Neither Minimum nor Maximum

• 2734. Lexicographically Smallest String After Substring Operation

• 2735. Collecting Chocolates

• 2736. Maximum Sum Queries

Biweekly Contest 106

• 2729. Check if The Number is Fascinating

• 2730. Find the Longest Semi-Repetitive Substring

• 2731. Movement of Robots

• 2732. Find a Good Subset of the Matrix

Weekly Contest 348

• 2716. Minimize String Length

• 2717. Semi-Ordered Permutation

• 2718. Sum of Matrix After Queries

• 2719. Count of Integers

Weekly Contest 347

• 2710. Remove Trailing Zeros From a String

• 2711. Difference of Number of Distinct Values on Diagonals

• 2712. Minimum Cost to Make All Characters Equal

• 2713. Maximum Strictly Increasing Cells in a Matrix

Biweekly Contest 105

• 2706. Buy Two Chocolates

• 2707. Extra Characters in a String

• 2708. Maximum Strength of a Group

• 2709. Greatest Common Divisor Traversal

Weekly Contest 346

• 2696. Minimum String Length After Removing Substrings

• 2697. Lexicographically Smallest Palindrome

• 2698. Find the Punishment Number of an Integer

• 2699. Modify Graph Edge Weights

Weekly Contest 345

• 2682. Find the Losers of the Circular Game

• 2683. Neighboring Bitwise XOR

• 2684. Maximum Number of Moves in a Grid

• 2685. Count the Number of Complete Components

Biweekly Contest 104

• 2678. Number of Senior Citizens

• 2679. Sum in a Matrix

• 2680. Maximum OR

• 2681. Power of Heroes

Weekly Contest 344

• 2670. Find the Distinct Difference Array

• 2671. Frequency Tracker

• 2672. Number of Adjacent Elements With the Same Color

• 2673. Make Costs of Paths Equal in a Binary Tree

Weekly Contest 343

• 2660. Determine the Winner of a Bowling Game

• 2661. First Completely Painted Row or Column

• 2662. Minimum Cost of a Path With Special Roads

• 2663. Lexicographically Smallest Beautiful String

Biweekly Contest 103

• 2656. Maximum Sum With Exactly K Elements

• 2657. Find the Prefix Common Array of Two Arrays

• 2658. Maximum Number of Fish in a Grid

• 2659. Make Array Empty

Weekly Contest 342

• 2651. Calculate Delayed Arrival Time

• 2652. Sum Multiples

• 2653. Sliding Subarray Beauty

• 2654. Minimum Number of Operations to Make All Array Elements Equal to 1

Weekly Contest 341

• 2643. Row With Maximum Ones

• 2644. Find the Maximum Divisibility Score

• 2645. Minimum Additions to Make Valid String

• 2646. Minimize the Total Price of the Trips

Biweekly Contest 102

• 2639. Find the Width of Columns of a Grid

• 2640. Find the Score of All Prefixes of an Array

• 2641. Cousins in Binary Tree II

• 2642. Design Graph With Shortest Path Calculator

Weekly Contest 340

• 2614. Prime In Diagonal

• 2615. Sum of Distances

• 2616. Minimize the Maximum Difference of Pairs

• 2617. Minimum Number of Visited Cells in a Grid

Weekly Contest 339

• 2609. Find the Longest Balanced Substring of a Binary String

• 2610. Convert an Array Into a 2D Array With Conditions

• 2611. Mice and Cheese

• 2612. Minimum Reverse Operations

Biweekly Contest 101

• 2605. Form Smallest Number From Two Digit Arrays

• 2606. Find the Substring With Maximum Cost

• 2607. Make K-Subarray Sums Equal

• 2608. Shortest Cycle in a Graph

Weekly Contest 338

• 2600. K Items With the Maximum Sum

• 2601. Prime Subtraction Operation

• 2602. Minimum Operations to Make All Array Elements Equal

• 2603. Collect Coins in a Tree

Weekly Contest 337

• 2595. Number of Even and Odd Bits

• 2596. Check Knight Tour Configuration

• 2597. The Number of Beautiful Subsets

• 2598. Smallest Missing Non-negative Integer After Operations

Biweekly Contest 100

• 2591. Distribute Money to Maximum Children

• 2592. Maximize Greatness of an Array

• 2593. Find Score of an Array After Marking All Elements

• 2594. Minimum Time to Repair Cars

Weekly Contest 336

• 2586. Count the Number of Vowel Strings in Range

• 2587. Rearrange Array to Maximize Prefix Score

• 2588. Count the Number of Beautiful Subarrays

• 2589. Minimum Time to Complete All Tasks

Weekly Contest 335

• 2582. Pass the Pillow

• 2583. Kth Largest Sum in a Binary Tree

• 2584. Split the Array to Make Coprime Products

• 2585. Number of Ways to Earn Points

Biweekly Contest 99

• 2578. Split With Minimum Sum

• 2579. Count Total Number of Colored Cells

• 2580. Count Ways to Group Overlapping Ranges

• 2581. Count Number of Possible Root Nodes

Weekly Contest 334

• 2574. Left and Right Sum Differences

• 2575. Find the Divisibility Array of a String

• 2576. Find the Maximum Number of Marked Indices

• 2577. Minimum Time to Visit a Cell In a Grid

Weekly Contest 333

• 2570. Merge Two 2D Arrays by Summing Values

• 2571. Minimum Operations to Reduce an Integer to 0

• 2572. Count the Number of Square-Free Subsets

• 2573. Find the String with LCP

Biweekly Contest 98

• 2566. Maximum Difference by Remapping a Digit

• 2567. Minimum Score by Changing Two Elements

• 2568. Minimum Impossible OR

• 2569. Handling Sum Queries After Update

Weekly Contest 332

• 2562. Find the Array Concatenation Value

• 2563. Count the Number of Fair Pairs

• 2564. Substring XOR Queries

• 2565. Subsequence With the Minimum Score

Weekly Contest 331

• 2558. Take Gifts From the Richest Pile

• 2559. Count Vowel Strings in Ranges

• 2560. House Robber IV

• 2561. Rearranging Fruits

Biweekly Contest 97

• 2553. Separate the Digits in an Array

• 2554. Maximum Number of Integers to Choose From a Range I

• 2555. Maximize Win From Two Segments

• 2556. Disconnect Path in a Binary Matrix by at Most One Flip

Weekly Contest 330

• 2549. Count Distinct Numbers on Board

• 2550. Count Collisions of Monkeys on a Polygon

• 2551. Put Marbles in Bags

• 2552. Count Increasing Quadruplets

Weekly Contest 329

• 2544. Alternating Digit Sum

• 2545. Sort the Students by Their Kth Score

• 2546. Apply Bitwise Operations to Make Strings Equal

• 2547. Minimum Cost to Split an Array

Biweekly Contest 96

• 2540. Minimum Common Value

• 2541. Minimum Operations to Make Array Equal II

• 2542. Maximum Subsequence Score

• 2543. Check if Point Is Reachable

Weekly Contest 328

• 2535. Difference Between Element Sum and Digit Sum of an Array

• 2536. Increment Submatrices by One

• 2537. Count the Number of Good Subarrays

• 2538. Difference Between Maximum and Minimum Price Sum

Weekly Contest 327

• 2529. Maximum Count of Positive Integer and Negative Integer

• 2530. Maximal Score After Applying K Operations

• 2531. Make Number of Distinct Characters Equal

• 2532. Time to Cross a Bridge

Biweekly Contest 95

• 2525. Categorize Box According to Criteria

• 2526. Find Consecutive Integers from a Data Stream

• 2527. Find Xor-Beauty of Array

• 2528. Maximize the Minimum Powered City

Weekly Contest 326

• 2520. Count the Digits That Divide a Number

• 2521. Distinct Prime Factors of Product of Array

• 2522. Partition String Into Substrings With Values at Most K

• 2523. Closest Prime Numbers in Range

Weekly Contest 325

• 2515. Shortest Distance to Target String in a Circular Array

• 2516. Take K of Each Character From Left and Right

• 2517. Maximum Tastiness of Candy Basket

• 2518. Number of Great Partitions

Biweekly Contest 94

• 2511. Maximum Enemy Forts That Can Be Captured

• 2512. Reward Top K Students

• 2513. Minimize the Maximum of Two Arrays

• 2514. Count Anagrams

Weekly Contest 324

• 2506. Count Pairs Of Similar Strings

• 2507. Smallest Value After Replacing With Sum of Prime Factors

• 2508. Add Edges to Make Degrees of All Nodes Even

• 2509. Cycle Length Queries in a Tree

Weekly Contest 323

• 2500. Delete Greatest Value in Each Row

• 2501. Longest Square Streak in an Array

• 2502. Design Memory Allocator

• 2503. Maximum Number of Points From Grid Queries

Biweekly Contest 93

• 2496. Maximum Value of a String in an Array

• 2497. Maximum Star Sum of a Graph

• 2498. Frog Jump II

• 2499. Minimum Total Cost to Make Arrays Unequal

Weekly Contest 322

• 2490. Circular Sentence

• 2491. Divide Players Into Teams of Equal Skill

• 2492. Minimum Score of a Path Between Two Cities

• 2493. Divide Nodes Into the Maximum Number of Groups

Weekly Contest 321

• 2485. Find the Pivot Integer

• 2486. Append Characters to String to Make Subsequence

• 2487. Remove Nodes From Linked List

• 2488. Count Subarrays With Median K

Biweekly Contest 92

• 2481. Minimum Cuts to Divide a Circle

• 2482. Difference Between Ones and Zeros in Row and Column

• 2483. Minimum Penalty for a Shop

• 2484. Count Palindromic Subsequences

Weekly Contest 320

• 2475. Number of Unequal Triplets in Array

• 2476. Closest Nodes Queries in a Binary Search Tree

• 2477. Minimum Fuel Cost to Report to the Capital

• 2478. Number of Beautiful Partitions

Weekly Contest 319

• 2469. Convert the Temperature

• 2470. Number of Subarrays With LCM Equal to K

• 2471. Minimum Number of Operations to Sort a Binary Tree by Level

• 2472. Maximum Number of Non-overlapping Palindrome Substrings

Biweekly Contest 91

• 2465. Number of Distinct Averages

• 2466. Count Ways To Build Good Strings

• 2467. Most Profitable Path in a Tree

• 2468. Split Message Based on Limit

Weekly Contest 318

• 2460. Apply Operations to an Array

• 2461. Maximum Sum of Distinct Subarrays With Length K

• 2462. Total Cost to Hire K Workers

• 2463. Minimum Total Distance Traveled

Weekly Contest 317

• 2455. Average Value of Even Numbers That Are Divisible by Three

• 2456. Most Popular Video Creator

• 2457. Minimum Addition to Make Integer Beautiful

• 2458. Height of Binary Tree After Subtree Removal Queries

Biweekly Contest 90

• 2451. Odd String Difference

• 2452. Words Within Two Edits of Dictionary

• 2453. Destroy Sequential Targets

• 2454. Next Greater Element IV

Weekly Contest 316

• 2446. Determine if Two Events Have Conflict

• 2447. Number of Subarrays With GCD Equal to K

• 2448. Minimum Cost to Make Array Equal

• 2449. Minimum Number of Operations to Make Arrays Similar

Weekly Contest 315

• 2441. Largest Positive Integer That Exists With Its Negative

• 2442. Count Number of Distinct Integers After Reverse Operations

• 2443. Sum of Number and Its Reverse

• 2444. Count Subarrays With Fixed Bounds

Biweekly Contest 89

• 2437. Number of Valid Clock Times

• 2438. Range Product Queries of Powers

• 2439. Minimize Maximum of Array

• 2440. Create Components With Same Value

Weekly Contest 314

• 2432. The Employee That Worked on the Longest Task

• 2433. Find The Original Array of Prefix Xor

• 2434. Using a Robot to Print the Lexicographically Smallest String

• 2435. Paths in Matrix Whose Sum Is Divisible by K

Weekly Contest 313

• 2427. Number of Common Factors

• 2428. Maximum Sum of an Hourglass

• 2429. Minimize XOR

• 2430. Maximum Deletions on a String

Biweekly Contest 88

• 2423. Remove Letter To Equalize Frequency

• 2424. Longest Uploaded Prefix

• 2425. Bitwise XOR of All Pairings

• 2426. Number of Pairs Satisfying Inequality

Weekly Contest 312

• 2418. Sort the People

• 2419. Longest Subarray With Maximum Bitwise AND

• 2420. Find All Good Indices

• 2421. Number of Good Paths

Weekly Contest 311

• 2413. Smallest Even Multiple

• 2414. Length of the Longest Alphabetical Continuous Substring

• 2415. Reverse Odd Levels of Binary Tree

• 2416. Sum of Prefix Scores of Strings

Biweekly Contest 87

• 2409. Count Days Spent Together

• 2410. Maximum Matching of Players With Trainers

• 2411. Smallest Subarrays With Maximum Bitwise OR

• 2412. Minimum Money Required Before Transactions

Weekly Contest 310

• 2404. Most Frequent Even Element

• 2405. Optimal Partition of String

• 2406. Divide Intervals Into Minimum Number of Groups

• 2407. Longest Increasing Subsequence II

Weekly Contest 309

• 2399. Check Distances Between Same Letters

• 2400. Number of Ways to Reach a Position After Exactly k Steps

• 2401. Longest Nice Subarray

• 2402. Meeting Rooms III

Biweekly Contest 86

• 2395. Find Subarrays With Equal Sum

• 2396. Strictly Palindromic Number

• 2397. Maximum Rows Covered by Columns

• 2398. Maximum Number of Robots Within Budget

Weekly Contest 308

• 2389. Longest Subsequence With Limited Sum

• 2390. Removing Stars From a String

• 2391. Minimum Amount of Time to Collect Garbage

• 2392. Build a Matrix With Conditions

Weekly Contest 307

• 2383. Minimum Hours of Training to Win a Competition

• 2384. Largest Palindromic Number

• 2385. Amount of Time for Binary Tree to Be Infected

• 2386. Find the K-Sum of an Array

Biweekly Contest 85

• 2379. Minimum Recolors to Get K Consecutive Black Blocks

• 2380. Time Needed to Rearrange a Binary String

• 2381. Shifting Letters II

• 2382. Maximum Segment Sum After Removals

Weekly Contest 306

• 2373. Largest Local Values in a Matrix

• 2374. Node With Highest Edge Score

• 2375. Construct Smallest Number From DI String

• 2376. Count Special Integers

Weekly Contest 305

• 2367. Number of Arithmetic Triplets

• 2368. Reachable Nodes With Restrictions

• 2369. Check if There is a Valid Partition For The Array

• 2370. Longest Ideal Subsequence

Biweekly Contest 84

• 2363. Merge Similar Items

• 2364. Count Number of Bad Pairs

• 2365. Task Scheduler II

• 2366. Minimum Replacements to Sort the Array

Weekly Contest 304

• 2357. Make Array Zero by Subtracting Equal Amounts

• 2358. Maximum Number of Groups Entering a Competition

• 2359. Find Closest Node to Given Two Nodes

• 2360. Longest Cycle in a Graph

Weekly Contest 303

• 2351. First Letter to Appear Twice

• 2352. Equal Row and Column Pairs

• 2353. Design a Food Rating System

• 2354. Number of Excellent Pairs

Biweekly Contest 83

• 2347. Best Poker Hand

• 2348. Number of Zero-Filled Subarrays

• 2349. Design a Number Container System

• 2350. Shortest Impossible Sequence of Rolls

Weekly Contest 302

• 2341. Maximum Number of Pairs in Array

• 2342. Max Sum of a Pair With Equal Sum of Digits

• 2343. Query Kth Smallest Trimmed Number

• 2344. Minimum Deletions to Make Array Divisible

Weekly Contest 301

• 2335. Minimum Amount of Time to Fill Cups

• 2336. Smallest Number in Infinite Set

• 2337. Move Pieces to Obtain a String

• 2338. Count the Number of Ideal Arrays

Biweekly Contest 82

• 2331. Evaluate Boolean Binary Tree

• 2332. The Latest Time to Catch a Bus

• 2333. Minimum Sum of Squared Difference

• 2334. Subarray With Elements Greater Than Varying Threshold

Weekly Contest 300

• 2325. Decode the Message

• 2326. Spiral Matrix IV

• 2327. Number of People Aware of a Secret

• 2328. Number of Increasing Paths in a Grid

Weekly Contest 299

• 2319. Check if Matrix Is X-Matrix

• 2320. Count Number of Ways to Place Houses

• 2321. Maximum Score Of Spliced Array

• 2322. Minimum Score After Removals on a Tree

Biweekly Contest 81

• 2315. Count Asterisks

• 2316. Count Unreachable Pairs of Nodes in an Undirected Graph

• 2317. Maximum XOR After Operations

• 2318. Number of Distinct Roll Sequences

Weekly Contest 298

• 2309. Greatest English Letter in Upper and Lower Case

• 2310. Sum of Numbers With Units Digit K

• 2311. Longest Binary Subsequence Less Than or Equal to K

• 2312. Selling Pieces of Wood

Weekly Contest 297

• 2303. Calculate Amount Paid in Taxes

• 2304. Minimum Path Cost in a Grid

• 2305. Fair Distribution of Cookies

• 2306. Naming a Company

Biweekly Contest 80

• 2299. Strong Password Checker II

• 2300. Successful Pairs of Spells and Potions

• 2301. Match Substring After Replacement

• 2302. Count Subarrays With Score Less Than K

Weekly Contest 296

• 2293. Min Max Game

• 2294. Partition Array Such That Maximum Difference Is K

• 2295. Replace Elements in an Array

• 2296. Design a Text Editor

Weekly Contest 295

• 2287. Rearrange Characters to Make Target String

• 2288. Apply Discount to Prices

• 2289. Steps to Make Array Non-decreasing

• 2290. Minimum Obstacle Removal to Reach Corner

Biweekly Contest 79

• 2283. Check if Number Has Equal Digit Count and Digit Value

• 2284. Sender With Largest Word Count

• 2285. Maximum Total Importance of Roads

• 2286. Booking Concert Tickets in Groups

Weekly Contest 294

• 2278. Percentage of Letter in String

• 2279. Maximum Bags With Full Capacity of Rocks

• 2280. Minimum Lines to Represent a Line Chart

• 2281. Sum of Total Strength of Wizards

Weekly Contest 293

• 2273. Find Resultant Array After Removing Anagrams

• 2274. Maximum Consecutive Floors Without Special Floors

• 2275. Largest Combination With Bitwise AND Greater Than Zero

• 2276. Count Integers in Intervals

Biweekly Contest 78

• 2269. Find the K-Beauty of a Number

• 2270. Number of Ways to Split Array

• 2271. Maximum White Tiles Covered by a Carpet

• 2272. Substring With Largest Variance

Weekly Contest 292

• 2264. Largest 3-Same-Digit Number in String

• 2265. Count Nodes Equal to Average of Subtree

• 2266. Count Number of Texts

• 2267. Check if There Is a Valid Parentheses String Path

Weekly Contest 291

• 2259. Remove Digit From Number to Maximize Result

• 2260. Minimum Consecutive Cards to Pick Up

• 2261. K Divisible Elements Subarrays

• 2262. Total Appeal of A String

Biweekly Contest 77

• 2255. Count Prefixes of a Given String

• 2256. Minimum Average Difference

• 2257. Count Unguarded Cells in the Grid

• 2258. Escape the Spreading Fire

Weekly Contest 290

• 2248. Intersection of Multiple Arrays

• 2249. Count Lattice Points Inside a Circle

• 2250. Count Number of Rectangles Containing Each Point

• 2251. Number of Flowers in Full Bloom

Weekly Contest 289

• 2243. Calculate Digit Sum of a String

• 2244. Minimum Rounds to Complete All Tasks

• 2245. Maximum Trailing Zeros in a Cornered Path

• 2246. Longest Path With Different Adjacent Characters

Biweekly Contest 76

• 2239. Find Closest Number to Zero

• 2240. Number of Ways to Buy Pens and Pencils

• 2241. Design an ATM Machine

• 2242. Maximum Score of a Node Sequence

Weekly Contest 288

• 2231. Largest Number After Digit Swaps by Parity

• 2232. Minimize Result by Adding Parentheses to Expression

• 2233. Maximum Product After K Increments

• 2234. Maximum Total Beauty of the Gardens

Weekly Contest 287

• 2224. Minimum Number of Operations to Convert Time

• 2225. Find Players With Zero or One Losses

• 2226. Maximum Candies Allocated to K Children

• 2227. Encrypt and Decrypt Strings

Biweekly Contest 75

• 2220. Minimum Bit Flips to Convert Number

• 2221. Find Triangular Sum of an Array

• 2222. Number of Ways to Select Buildings

• 2223. Sum of Scores of Built Strings

Weekly Contest 286

• 2215. Find the Difference of Two Arrays

• 2216. Minimum Deletions to Make Array Beautiful

• 2217. Find Palindrome With Fixed Length

• 2218. Maximum Value of K Coins From Piles

Weekly Contest 285

• 2210. Count Hills and Valleys in an Array

• 2211. Count Collisions on a Road

• 2212. Maximum Points in an Archery Competition

• 2213. Longest Substring of One Repeating Character

Biweekly Contest 74

• 2206. Divide Array Into Equal Pairs

• 2207. Maximize Number of Subsequences in a String

• 2208. Minimum Operations to Halve Array Sum

• 2209. Minimum White Tiles After Covering With Carpets

Weekly Contest 284

• 2200. Find All K-Distant Indices in an Array

• 2201. Count Artifacts That Can Be Extracted

• 2202. Maximize the Topmost Element After K Moves

• 2203. Minimum Weighted Subgraph With the Required Paths

Weekly Contest 283

• 2194. Cells in a Range on an Excel Sheet

• 2195. Append K Integers With Minimal Sum

• 2196. Create Binary Tree From Descriptions

• 2197. Replace Non-Coprime Numbers in Array

Biweekly Contest 73

• 2190. Most Frequent Number Following Key In an Array

• 2191. Sort the Jumbled Numbers

• 2192. All Ancestors of a Node in a Directed Acyclic Graph

• 2193. Minimum Number of Moves to Make Palindrome

Weekly Contest 282

• 2185. Counting Words With a Given Prefix

• 2186. Minimum Number of Steps to Make Two Strings Anagram II

• 2187. Minimum Time to Complete Trips

• 2188. Minimum Time to Finish the Race

Weekly Contest 281

• 2180. Count Integers With Even Digit Sum

• 2181. Merge Nodes in Between Zeros

• 2182. Construct String With Repeat Limit

• 2183. Count Array Pairs Divisible by K

Biweekly Contest 72

• 2176. Count Equal and Divisible Pairs in an Array

• 2177. Find Three Consecutive Integers That Sum to a Given Number

• 2178. Maximum Split of Positive Even Integers

• 2179. Count Good Triplets in an Array

Weekly Contest 280

• 2169. Count Operations to Obtain Zero

• 2170. Minimum Operations to Make the Array Alternating

• 2171. Removing Minimum Number of Magic Beans

• 2172. Maximum AND Sum of Array

Weekly Contest 279

• 2164. Sort Even and Odd Indices Independently

• 2165. Smallest Value of the Rearranged Number

• 2166. Design Bitset

• 2167. Minimum Time to Remove All Cars Containing Illegal Goods

Biweekly Contest 71

• 2160. Minimum Sum of Four Digit Number After Splitting Digits

• 2161. Partition Array According to Given Pivot

• 2162. Minimum Cost to Set Cooking Time

• 2163. Minimum Difference in Sums After Removal of Elements

Weekly Contest 278

• 2154. Keep Multiplying Found Values by Two

• 2155. All Divisions With the Highest Score of a Binary Array

• 2156. Find Substring With Given Hash Value

• 2157. Groups of Strings

Weekly Contest 277

• 2148. Count Elements With Strictly Smaller and Greater Elements

• 2149. Rearrange Array Elements by Sign

• 2150. Find All Lonely Numbers in the Array

• 2151. Maximum Good People Based on Statements

Biweekly Contest 70

• 2144. Minimum Cost of Buying Candies With Discount

• 2145. Count the Hidden Sequences

• 2146. K Highest Ranked Items Within a Price Range

• 2147. Number of Ways to Divide a Long Corridor

Weekly Contest 276

• 2138. Divide a String Into Groups of Size k

• 2139. Minimum Moves to Reach Target Score

• 2140. Solving Questions With Brainpower

• 2141. Maximum Running Time of N Computers

Weekly Contest 275

• 2133. Check if Every Row and Column Contains All Numbers

• 2134. Minimum Swaps to Group All 1's Together II

• 2135. Count Words Obtained After Adding a Letter

• 2136. Earliest Possible Day of Full Bloom

Biweekly Contest 69

• 2129. Capitalize the Title

• 2130. Maximum Twin Sum of a Linked List

• 2131. Longest Palindrome by Concatenating Two Letter Words

• 2132. Stamping the Grid

Weekly Contest 274

• 2124. Check if All A's Appears Before All B's

• 2125. Number of Laser Beams in a Bank

• 2126. Destroying Asteroids

• 2127. Maximum Employees to Be Invited to a Meeting

Weekly Contest 273

• 2119. A Number After a Double Reversal

• 2120. Execution of All Suffix Instructions Staying in a Grid

• 2121. Intervals Between Identical Elements

• 2122. Recover the Original Array

Biweekly Contest 68

• 2114. Maximum Number of Words Found in Sentences

• 2115. Find All Possible Recipes from Given Supplies

• 2116. Check if a Parentheses String Can Be Valid

• 2117. Abbreviating the Product of a Range

Weekly Contest 272

• 2108. Find First Palindromic String in the Array

• 2109. Adding Spaces to a String

• 2110. Number of Smooth Descent Periods of a Stock

• 2111. Minimum Operations to Make the Array K-Increasing

Weekly Contest 271

• 2103. Rings and Rods

• 2104. Sum of Subarray Ranges

• 2105. Watering Plants II

• 2106. Maximum Fruits Harvested After at Most K Steps

Biweekly Contest 67

• 2099. Find Subsequence of Length K With the Largest Sum

• 2100. Find Good Days to Rob the Bank

• 2101. Detonate the Maximum Bombs

• 2102. Sequentially Ordinal Rank Tracker

Weekly Contest 270

• 2094. Finding 3-Digit Even Numbers

• 2095. Delete the Middle Node of a Linked List

• 2096. Step-By-Step Directions From a Binary Tree Node to Another

• 2097. Valid Arrangement of Pairs

Weekly Contest 269

• 2089. Find Target Indices After Sorting Array

• 2090. K Radius Subarray Averages

• 2091. Removing Minimum and Maximum From Array

• 2092. Find All People With Secret

Biweekly Contest 66

• 2085. Count Common Words With One Occurrence

• 2086. Minimum Number of Food Buckets to Feed the Hamsters

• 2087. Minimum Cost Homecoming of a Robot in a Grid

• 2088. Count Fertile Pyramids in a Land

Weekly Contest 268

• 2078. Two Furthest Houses With Different Colors

• 2079. Watering Plants

• 2080. Range Frequency Queries

• 2081. Sum of k-Mirror Numbers

Weekly Contest 267

• 2073. Time Needed to Buy Tickets

• 2074. Reverse Nodes in Even Length Groups

• 2075. Decode the Slanted Ciphertext

• 2076. Process Restricted Friend Requests

Biweekly Contest 65

• 2068. Check Whether Two Strings are Almost Equivalent

• 2069. Walking Robot Simulation II

• 2070. Most Beautiful Item for Each Query

• 2071. Maximum Number of Tasks You Can Assign

Weekly Contest 266

• 2062. Count Vowel Substrings of a String

• 2063. Vowels of All Substrings

• 2064. Minimized Maximum of Products Distributed to Any Store

• 2065. Maximum Path Quality of a Graph

Weekly Contest 265

• 2057. Smallest Index With Equal Value

• 2058. Find the Minimum and Maximum Number of Nodes Between Critical Points

• 2059. Minimum Operations to Convert Number

• 2060. Check if an Original String Exists Given Two Encoded Strings

Biweekly Contest 64

• 2053. Kth Distinct String in an Array

• 2054. Two Best Non-Overlapping Events

• 2055. Plates Between Candles

• 2056. Number of Valid Move Combinations On Chessboard

Weekly Contest 264

• 2047. Number of Valid Words in a Sentence

• 2048. Next Greater Numerically Balanced Number

• 2049. Count Nodes With the Highest Score

• 2050. Parallel Courses III

Weekly Contest 263

• 2042. Check if Numbers Are Ascending in a Sentence

• 2043. Simple Bank System

• 2044. Count Number of Maximum Bitwise-OR Subsets

• 2045. Second Minimum Time to Reach Destination

Biweekly Contest 63

• 2037. Minimum Number of Moves to Seat Everyone

• 2038. Remove Colored Pieces if Both Neighbors are the Same Color

• 2039. The Time When the Network Becomes Idle

• 2040. Kth Smallest Product of Two Sorted Arrays

Weekly Contest 262

• 2032. Two Out of Three

• 2033. Minimum Operations to Make a Uni-Value Grid

• 2034. Stock Price Fluctuation

• 2035. Partition Array Into Two Arrays to Minimize Sum Difference

Weekly Contest 261

• 2027. Minimum Moves to Convert String

• 2028. Find Missing Observations

• 2029. Stone Game IX

• 2030. Smallest K-Length Subsequence With Occurrences of a Letter

Biweekly Contest 62

• 2022. Convert 1D Array Into 2D Array

• 2023. Number of Pairs of Strings With Concatenation Equal to Target

• 2024. Maximize the Confusion of an Exam

• 2025. Maximum Number of Ways to Partition an Array

Weekly Contest 260

• 2016. Maximum Difference Between Increasing Elements

• 2017. Grid Game

• 2018. Check if Word Can Be Placed In Crossword

• 2019. The Score of Students Solving Math Expression

Weekly Contest 259

• 2011. Final Value of Variable After Performing Operations

• 2012. Sum of Beauty in the Array

• 2013. Detect Squares

• 2014. Longest Subsequence Repeated k Times

Biweekly Contest 61

• 2006. Count Number of Pairs With Absolute Difference K

• 2007. Find Original Array From Doubled Array

• 2008. Maximum Earnings From Taxi

• 2009. Minimum Number of Operations to Make Array Continuous

Weekly Contest 258

• 2000. Reverse Prefix of Word

• 2001. Number of Pairs of Interchangeable Rectangles

• 2002. Maximum Product of the Length of Two Palindromic Subsequences

• 2003. Smallest Missing Genetic Value in Each Subtree

Weekly Contest 257

• 1995. Count Special Quadruplets

• 1996. The Number of Weak Characters in the Game

• 1997. First Day Where You Have Been in All the Rooms

• 1998. GCD Sort of an Array

Biweekly Contest 60

• 1991. Find the Middle Index in Array

• 1992. Find All Groups of Farmland

• 1993. Operations on Tree

• 1994. The Number of Good Subsets

Weekly Contest 256

• 1984. Minimum Difference Between Highest and Lowest of K Scores

• 1985. Find the Kth Largest Integer in the Array

• 1986. Minimum Number of Work Sessions to Finish the Tasks

• 1987. Number of Unique Good Subsequences

Weekly Contest 255

• 1979. Find Greatest Common Divisor of Array

• 1980. Find Unique Binary String

• 1981. Minimize the Difference Between Target and Chosen Elements

• 1982. Find Array Given Subset Sums

Biweekly Contest 59

• 1974. Minimum Time to Type Word Using Special Typewriter

• 1975. Maximum Matrix Sum

• 1976. Number of Ways to Arrive at Destination

• 1977. Number of Ways to Separate Numbers

Weekly Contest 254

• 1967. Number of Strings That Appear as Substrings in Word

• 1968. Array With Elements Not Equal to Average of Neighbors

• 1969. Minimum Non-Zero Product of the Array Elements

• 1970. Last Day Where You Can Still Cross

Weekly Contest 253

• 1961. Check If String Is a Prefix of Array

• 1962. Remove Stones to Minimize the Total

• 1963. Minimum Number of Swaps to Make the String Balanced

• 1964. Find the Longest Valid Obstacle Course at Each Position

Biweekly Contest 58

• 1957. Delete Characters to Make Fancy String

• 1958. Check if Move is Legal

• 1959. Minimum Total Space Wasted With K Resizing Operations

• 1960. Maximum Product of the Length of Two Palindromic Substrings

Weekly Contest 252

• 1952. Three Divisors

• 1953. Maximum Number of Weeks for Which You Can Work

• 1954. Minimum Garden Perimeter to Collect Enough Apples

• 1955. Count Number of Special Subsequences

Weekly Contest 251

• 1945. Sum of Digits of String After Convert

• 1946. Largest Number After Mutating Substring

• 1947. Maximum Compatibility Score Sum

• 1948. Delete Duplicate Folders in System

Biweekly Contest 57

• 1941. Check if All Characters Have Equal Number of Occurrences

• 1942. The Number of the Smallest Unoccupied Chair

• 1943. Describe the Painting

• 1944. Number of Visible People in a Queue

Weekly Contest 250

• 1935. Maximum Number of Words You Can Type

• 1936. Add Minimum Number of Rungs

• 1937. Maximum Number of Points with Cost

• 1938. Maximum Genetic Difference Query

Weekly Contest 249

• 1929. Concatenation of Array

• 1930. Unique Length-3 Palindromic Subsequences

• 1931. Painting a Grid With Three Different Colors

• 1932. Merge BSTs to Create Single BST

Biweekly Contest 56

• 1925. Count Square Sum Triples

• 1926. Nearest Exit from Entrance in Maze

• 1927. Sum Game

• 1928. Minimum Cost to Reach Destination in Time

Weekly Contest 248

• 1920. Build Array from Permutation

• 1921. Eliminate Maximum Number of Monsters

• 1922. Count Good Numbers

• 1923. Longest Common Subpath

Weekly Contest 247

• 1913. Maximum Product Difference Between Two Pairs

• 1914. Cyclically Rotating a Grid

• 1915. Number of Wonderful Substrings

• 1916. Count Ways to Build Rooms in an Ant Colony

Biweekly Contest 55

• 1909. Remove One Element to Make the Array Strictly Increasing

• 1910. Remove All Occurrences of a Substring

• 1911. Maximum Alternating Subsequence Sum

• 1912. Design Movie Rental System

Weekly Contest 246

• 1903. Largest Odd Number in String

• 1904. The Number of Full Rounds You Have Played

• 1905. Count Sub Islands

• 1906. Minimum Absolute Difference Queries

Weekly Contest 245

• 1897. Redistribute Characters to Make All Strings Equal

• 1898. Maximum Number of Removable Characters

• 1899. Merge Triplets to Form Target Triplet

• 1900. The Earliest and Latest Rounds Where Players Compete

Biweekly Contest 54

• 1893. Check if All the Integers in a Range Are Covered

• 1894. Find the Student that Will Replace the Chalk

• 1895. Largest Magic Square

• 1896. Minimum Cost to Change the Final Value of Expression

Weekly Contest 244

• 1886. Determine Whether Matrix Can Be Obtained By Rotation

• 1887. Reduction Operations to Make the Array Elements Equal

• 1888. Minimum Number of Flips to Make the Binary String Alternating

• 1889. Minimum Space Wasted From Packaging

Weekly Contest 243

• 1880. Check if Word Equals Summation of Two Words

• 1881. Maximum Value after Insertion

• 1882. Process Tasks Using Servers

• 1883. Minimum Skips to Arrive at Meeting On Time

Biweekly Contest 53

• 1876. Substrings of Size Three with Distinct Characters

• 1877. Minimize Maximum Pair Sum in Array

• 1878. Get Biggest Three Rhombus Sums in a Grid

• 1879. Minimum XOR Sum of Two Arrays

Weekly Contest 242

• 1869. Longer Contiguous Segments of Ones than Zeros

• 1870. Minimum Speed to Arrive on Time

• 1871. Jump Game VII

• 1872. Stone Game VIII

Weekly Contest 241

• 1863. Sum of All Subset XOR Totals

• 1864. Minimum Number of Swaps to Make the Binary String Alternating

• 1865. Finding Pairs With a Certain Sum

• 1866. Number of Ways to Rearrange Sticks With K Sticks Visible

Biweekly Contest 52

• 1859. Sorting the Sentence

• 1860. Incremental Memory Leak

• 1861. Rotating the Box

• 1862. Sum of Floored Pairs

Weekly Contest 240

• 1854. Maximum Population Year

• 1855. Maximum Distance Between a Pair of Values

• 1856. Maximum Subarray Min-Product

• 1857. Largest Color Value in a Directed Graph

Weekly Contest 239

• 1848. Minimum Distance to the Target Element

• 1849. Splitting a String Into Descending Consecutive Values

• 1850. Minimum Adjacent Swaps to Reach the Kth Smallest Number

• 1851. Minimum Interval to Include Each Query

Biweekly Contest 51

• 1844. Replace All Digits with Characters

• 1845. Seat Reservation Manager

• 1846. Maximum Element After Decreasing and Rearranging

• 1847. Closest Room

Weekly Contest 238

• 1837. Sum of Digits in Base K

• 1838. Frequency of the Most Frequent Element

• 1839. Longest Substring Of All Vowels in Order

• 1840. Maximum Building Height

Weekly Contest 237

• 1832. Check if the Sentence Is Pangram

• 1833. Maximum Ice Cream Bars

• 1834. Single-Threaded CPU

• 1835. Find XOR Sum of All Pairs Bitwise AND

Biweekly Contest 50

• 1827. Minimum Operations to Make the Array Increasing

• 1828. Queries on Number of Points Inside a Circle

• 1829. Maximum XOR for Each Query

• 1830. Minimum Number of Operations to Make String Sorted

Weekly Contest 236

• 1822. Sign of the Product of an Array

• 1823. Find the Winner of the Circular Game

• 1824. Minimum Sideway Jumps

• 1825. Finding MK Average

Weekly Contest 235

• 1816. Truncate Sentence

• 1817. Finding the Users Active Minutes

• 1818. Minimum Absolute Sum Difference

• 1819. Number of Different Subsequences GCDs

Biweekly Contest 49

• 1812. Determine Color of a Chessboard Square

• 1813. Sentence Similarity III

• 1814. Count Nice Pairs in an Array

• 1815. Maximum Number of Groups Getting Fresh Donuts

Weekly Contest 234

• 1805. Number of Different Integers in a String

• 1806. Minimum Number of Operations to Reinitialize a Permutation

• 1807. Evaluate the Bracket Pairs of a String

• 1808. Maximize Number of Nice Divisors

Weekly Contest 233

• 1800. Maximum Ascending Subarray Sum

• 1801. Number of Orders in the Backlog

• 1802. Maximum Value at a Given Index in a Bounded Array

• 1803. Count Pairs With XOR in a Range

Biweekly Contest 48

• 1796. Second Largest Digit in a String

• 1797. Design Authentication Manager

• 1798. Maximum Number of Consecutive Values You Can Make

• 1799. Maximize Score After N Operations

Weekly Contest 232

• 1790. Check if One String Swap Can Make Strings Equal

• 1791. Find Center of Star Graph

• 1792. Maximum Average Pass Ratio

• 1793. Maximum Score of a Good Subarray

Weekly Contest 231

• 1784. Check if Binary String Has at Most One Segment of Ones

• 1785. Minimum Elements to Add to Form a Given Sum

• 1786. Number of Restricted Paths From First to Last Node

• 1787. Make the XOR of All Segments Equal to Zero

Biweekly Contest 47

• 1779. Find Nearest Point That Has the Same X or Y Coordinate

• 1780. Check if Number is a Sum of Powers of Three

• 1781. Sum of Beauty of All Substrings

• 1782. Count Pairs Of Nodes

Weekly Contest 230

• 1773. Count Items Matching a Rule

• 1774. Closest Dessert Cost

• 1775. Equal Sum Arrays With Minimum Number of Operations

• 1776. Car Fleet II

Weekly Contest 229

• 1768. Merge Strings Alternately

• 1769. Minimum Number of Operations to Move All Balls to Each Box

• 1770. Maximum Score from Performing Multiplication Operations

• 1771. Maximize Palindrome Length From Subsequences

Biweekly Contest 46

• 1763. Longest Nice Substring

• 1764. Form Array by Concatenating Subarrays of Another Array

• 1765. Map of Highest Peak

• 1766. Tree of Coprimes

Weekly Contest 228

• 1758. Minimum Changes To Make Alternating Binary String

• 1759. Count Number of Homogenous Substrings

• 1760. Minimum Limit of Balls in a Bag

• 1761. Minimum Degree of a Connected Trio in a Graph

Weekly Contest 227

• 1752. Check if Array Is Sorted and Rotated

• 1753. Maximum Score From Removing Stones

• 1754. Largest Merge Of Two Strings

• 1755. Closest Subsequence Sum

Biweekly Contest 45

• 1748. Sum of Unique Elements

• 1749. Maximum Absolute Sum of Any Subarray

• 1750. Minimum Length of String After Deleting Similar Ends

• 1751. Maximum Number of Events That Can Be Attended II

Weekly Contest 226

• 1742. Maximum Number of Balls in a Box

• 1743. Restore the Array From Adjacent Pairs

• 1744. Can You Eat Your Favorite Candy on Your Favorite Day

• 1745. Palindrome Partitioning IV

Weekly Contest 225

• 1736. Latest Time by Replacing Hidden Digits

• 1737. Change Minimum Characters to Satisfy One of Three Conditions

• 1738. Find Kth Largest XOR Coordinate Value

• 1739. Building Boxes

Biweekly Contest 44

• 1732. Find the Highest Altitude

• 1733. Minimum Number of People to Teach

• 1734. Decode XORed Permutation

• 1735. Count Ways to Make Array With Product

Weekly Contest 224

• 1725. Number Of Rectangles That Can Form The Largest Square

• 1726. Tuple with Same Product

• 1727. Largest Submatrix With Rearrangements

• 1728. Cat and Mouse II

Weekly Contest 223

• 1720. Decode XORed Array

• 1721. Swapping Nodes in a Linked List

• 1722. Minimize Hamming Distance After Swap Operations

• 1723. Find Minimum Time to Finish All Jobs

Biweekly Contest 43

• 1716. Calculate Money in Leetcode Bank

• 1717. Maximum Score From Removing Substrings

• 1718. Construct the Lexicographically Largest Valid Sequence

• 1719. Number Of Ways To Reconstruct A Tree

Weekly Contest 222

• 1710. Maximum Units on a Truck

• 1711. Count Good Meals

• 1712. Ways to Split Array Into Three Subarrays

• 1713. Minimum Operations to Make a Subsequence

Weekly Contest 221

• 1704. Determine if String Halves Are Alike

• 1705. Maximum Number of Eaten Apples

• 1706. Where Will the Ball Fall

• 1707. Maximum XOR With an Element From Array

Biweekly Contest 42

• 1700. Number of Students Unable to Eat Lunch

• 1701. Average Waiting Time

• 1702. Maximum Binary String After Change

• 1703. Minimum Adjacent Swaps for K Consecutive Ones

Weekly Contest 220

• 1694. Reformat Phone Number

• 1695. Maximum Erasure Value

• 1696. Jump Game VI

• 1697. Checking Existence of Edge Length Limited Paths

Weekly Contest 219

• 1688. Count of Matches in Tournament

• 1689. Partitioning Into Minimum Number Of Deci-Binary Numbers

• 1690. Stone Game VII

• 1691. Maximum Height by Stacking Cuboids

Biweekly Contest 41

• 1684. Count the Number of Consistent Strings

• 1685. Sum of Absolute Differences in a Sorted Array

• 1686. Stone Game VI

• 1687. Delivering Boxes from Storage to Ports

Weekly Contest 218

• 1678. Goal Parser Interpretation

• 1679. Max Number of K-Sum Pairs

• 1680. Concatenation of Consecutive Binary Numbers

• 1681. Minimum Incompatibility

Weekly Contest 217

• 1672. Richest Customer Wealth

• 1673. Find the Most Competitive Subsequence

• 1674. Minimum Moves to Make Array Complementary

• 1675. Minimize Deviation in Array

Biweekly Contest 40

• 1668. Maximum Repeating Substring

• 1669. Merge In Between Linked Lists

• 1670. Design Front Middle Back Queue

• 1671. Minimum Number of Removals to Make Mountain Array

Weekly Contest 216

• 1662. Check If Two String Arrays are Equivalent

• 1663. Smallest String With A Given Numeric Value

• 1664. Ways to Make a Fair Array

• 1665. Minimum Initial Energy to Finish Tasks

Weekly Contest 215

• 1656. Design an Ordered Stream

• 1657. Determine if Two Strings Are Close

• 1658. Minimum Operations to Reduce X to Zero

• 1659. Maximize Grid Happiness

Biweekly Contest 39

• 1652. Defuse the Bomb

• 1653. Minimum Deletions to Make String Balanced

• 1654. Minimum Jumps to Reach Home

• 1655. Distribute Repeating Integers

Weekly Contest 214

• 1646. Get Maximum in Generated Array

• 1647. Minimum Deletions to Make Character Frequencies Unique

• 1648. Sell Diminishing-Valued Colored Balls

• 1649. Create Sorted Array through Instructions

Weekly Contest 213

• 1640. Check Array Formation Through Concatenation

• 1641. Count Sorted Vowel Strings

• 1642. Furthest Building You Can Reach

• 1643. Kth Smallest Instructions

Biweekly Contest 38

• 1636. Sort Array by Increasing Frequency

• 1637. Widest Vertical Area Between Two Points Containing No Points

• 1638. Count Substrings That Differ by One Character

• 1639. Number of Ways to Form a Target String Given a Dictionary

Weekly Contest 212

• 1629. Slowest Key

• 1630. Arithmetic Subarrays

• 1631. Path With Minimum Effort

• 1632. Rank Transform of a Matrix

Weekly Contest 211

• 1624. Largest Substring Between Two Equal Characters

• 1625. Lexicographically Smallest String After Applying Operations

• 1626. Best Team With No Conflicts

• 1627. Graph Connectivity With Threshold

Biweekly Contest 37

• 1619. Mean of Array After Removing Some Elements

• 1620. Coordinate With Maximum Network Quality

• 1621. Number of Sets of K Non-Overlapping Line Segments

• 1622. Fancy Sequence

Weekly Contest 210

• 1614. Maximum Nesting Depth of the Parentheses

• 1615. Maximal Network Rank

• 1616. Split Two Strings to Make Palindrome

• 1617. Count Subtrees With Max Distance Between Cities

Weekly Contest 209

• 1608. Special Array With X Elements Greater Than or Equal X

• 1609. Even Odd Tree

• 1610. Maximum Number of Visible Points

• 1611. Minimum One Bit Operations to Make Integers Zero

Biweekly Contest 36

• 1603. Design Parking System

• 1604. Alert Using Same Key-Card Three or More Times in a One Hour Period

• 1605. Find Valid Matrix Given Row and Column Sums

• 1606. Find Servers That Handled Most Number of Requests

Weekly Contest 208

• 1598. Crawler Log Folder

• 1599. Maximum Profit of Operating a Centennial Wheel

• 1600. Throne Inheritance

• 1601. Maximum Number of Achievable Transfer Requests

Weekly Contest 207

• 1592. Rearrange Spaces Between Words

• 1593. Split a String Into the Max Number of Unique Substrings

• 1594. Maximum Non Negative Product in a Matrix

• 1595. Minimum Cost to Connect Two Groups of Points

Biweekly Contest 35

• 1588. Sum of All Odd Length Subarrays

• 1589. Maximum Sum Obtained of Any Permutation

• 1590. Make Sum Divisible by P

• 1591. Strange Printer II

Weekly Contest 206

• 1582. Special Positions in a Binary Matrix

• 1583. Count Unhappy Friends

• 1584. Min Cost to Connect All Points

• 1585. Check If String Is Transformable With Substring Sort Operations

Weekly Contest 205

• 1576. Replace All 's to Avoid Consecutive Repeating Characters

• 1577. Number of Ways Where Square of Number Is Equal to Product of Two Numbers

• 1578. Minimum Time to Make Rope Colorful

• 1579. Remove Max Number of Edges to Keep Graph Fully Traversable

Biweekly Contest 34

• 1572. Matrix Diagonal Sum

• 1573. Number of Ways to Split a String

• 1574. Shortest Subarray to be Removed to Make Array Sorted

• 1575. Count All Possible Routes

Weekly Contest 204

• 1566. Detect Pattern of Length M Repeated K or More Times

• 1567. Maximum Length of Subarray With Positive Product

• 1568. Minimum Number of Days to Disconnect Island

• 1569. Number of Ways to Reorder Array to Get Same BST

Weekly Contest 203

• 1560. Most Visited Sector in a Circular Track

• 1561. Maximum Number of Coins You Can Get

• 1562. Find Latest Group of Size M

• 1563. Stone Game V

Biweekly Contest 33

• 1556. Thousand Separator

• 1557. Minimum Number of Vertices to Reach All Nodes

• 1558. Minimum Numbers of Function Calls to Make Target Array

• 1559. Detect Cycles in 2D Grid

Weekly Contest 202

• 1550. Three Consecutive Odds

• 1551. Minimum Operations to Make Array Equal

• 1552. Magnetic Force Between Two Balls

• 1553. Minimum Number of Days to Eat N Oranges

Weekly Contest 201

• 1544. Make The String Great

• 1545. Find Kth Bit in Nth Binary String

• 1546. Maximum Number of Non-Overlapping Subarrays With Sum Equals Target

• 1547. Minimum Cost to Cut a Stick

Biweekly Contest 32

• 1539. Kth Missing Positive Number

• 1540. Can Convert String in K Moves

• 1541. Minimum Insertions to Balance a Parentheses String

• 1542. Find Longest Awesome Substring

Weekly Contest 200

• 1534. Count Good Triplets

• 1535. Find the Winner of an Array Game

• 1536. Minimum Swaps to Arrange a Binary Grid

• 1537. Get the Maximum Score

Weekly Contest 199

• 1528. Shuffle String

• 1529. Minimum Suffix Flips

• 1530. Number of Good Leaf Nodes Pairs

• 1531. String Compression II

Biweekly Contest 31

• 1523. Count Odd Numbers in an Interval Range

• 1524. Number of Sub-arrays With Odd Sum

• 1525. Number of Good Ways to Split a String

• 1526. Minimum Number of Increments on Subarrays to Form a Target Array

Weekly Contest 198

• 1518. Water Bottles

• 1519. Number of Nodes in the Sub-Tree With the Same Label

• 1520. Maximum Number of Non-Overlapping Substrings

• 1521. Find a Value of a Mysterious Function Closest to Target

Weekly Contest 197

• 1512. Number of Good Pairs

• 1513. Number of Substrings With Only 1s

• 1514. Path with Maximum Probability

• 1515. Best Position for a Service Centre

Biweekly Contest 30

• 1507. Reformat Date

• 1508. Range Sum of Sorted Subarray Sums

• 1509. Minimum Difference Between Largest and Smallest Value in Three Moves

• 1510. Stone Game IV

Weekly Contest 196

• 1502. Can Make Arithmetic Progression From Sequence

• 1503. Last Moment Before All Ants Fall Out of a Plank

• 1504. Count Submatrices With All Ones

• 1505. Minimum Possible Integer After at Most K Adjacent Swaps On Digits

Weekly Contest 195

• 1496. Path Crossing

• 1497. Check If Array Pairs Are Divisible by k

• 1498. Number of Subsequences That Satisfy the Given Sum Condition

• 1499. Max Value of Equation

Biweekly Contest 29

• 1491. Average Salary Excluding the Minimum and Maximum Salary

• 1492. The kth Factor of n

• 1493. Longest Subarray of 1's After Deleting One Element

• 1494. Parallel Courses II

Weekly Contest 194

• 1486. XOR Operation in an Array

• 1487. Making File Names Unique

• 1488. Avoid Flood in The City

• 1489. Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree

Weekly Contest 193

• 1480. Running Sum of 1d Array

• 1481. Least Number of Unique Integers after K Removals

• 1482. Minimum Number of Days to Make m Bouquets

• 1483. Kth Ancestor of a Tree Node

Biweekly Contest 28

• 1475. Final Prices With a Special Discount in a Shop

• 1476. Subrectangle Queries

• 1477. Find Two Non-overlapping Sub-arrays Each With Target Sum

• 1478. Allocate Mailboxes

Weekly Contest 192

• 1470. Shuffle the Array

• 1471. The k Strongest Values in an Array

• 1472. Design Browser History

• 1473. Paint House III

Weekly Contest 191

• 1464. Maximum Product of Two Elements in an Array

• 1465. Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts

• 1466. Reorder Routes to Make All Paths Lead to the City Zero

• 1467. Probability of a Two Boxes Having The Same Number of Distinct Balls

Biweekly Contest 27

• 1460. Make Two Arrays Equal by Reversing Subarrays

• 1461. Check If a String Contains All Binary Codes of Size K

• 1462. Course Schedule IV

• 1463. Cherry Pickup II

Weekly Contest 190

• 1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence

• 1456. Maximum Number of Vowels in a Substring of Given Length

• 1457. Pseudo-Palindromic Paths in a Binary Tree

• 1458. Max Dot Product of Two Subsequences

Weekly Contest 189

• 1450. Number of Students Doing Homework at a Given Time

• 1451. Rearrange Words in a Sentence

• 1452. People Whose List of Favorite Companies Is Not a Subset of Another List

• 1453. Maximum Number of Darts Inside of a Circular Dartboard

Biweekly Contest 26

• 1446. Consecutive Characters

• 1447. Simplified Fractions

• 1448. Count Good Nodes in Binary Tree

• 1449. Form Largest Integer With Digits That Add up to Target

Weekly Contest 188

• 1441. Build an Array With Stack Operations

• 1442. Count Triplets That Can Form Two Arrays of Equal XOR

• 1443. Minimum Time to Collect All Apples in a Tree

• 1444. Number of Ways of Cutting a Pizza

Weekly Contest 187

• 1436. Destination City

• 1437. Check If All 1's Are at Least Length K Places Away

• 1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit

• 1439. Find the Kth Smallest Sum of a Matrix With Sorted Rows

Biweekly Contest 25

• 1431. Kids With the Greatest Number of Candies

• 1432. Max Difference You Can Get From Changing an Integer

• 1433. Check If a String Can Break Another String

• 1434. Number of Ways to Wear Different Hats to Each Other

Weekly Contest 186

• 1422. Maximum Score After Splitting a String

• 1423. Maximum Points You Can Obtain from Cards

• 1424. Diagonal Traverse II

• 1425. Constrained Subsequence Sum

Weekly Contest 185

• 1417. Reformat The String

• 1418. Display Table of Food Orders in a Restaurant

• 1419. Minimum Number of Frogs Croaking

• 1420. Build Array Where You Can Find The Maximum Exactly K Comparisons

Biweekly Contest 24

• 1413. Minimum Value to Get Positive Step by Step Sum

• 1414. Find the Minimum Number of Fibonacci Numbers Whose Sum Is K

• 1415. The k-th Lexicographical String of All Happy Strings of Length n

• 1416. Restore The Array

Weekly Contest 184

• 1408. String Matching in an Array

• 1409. Queries on a Permutation With Key

• 1410. HTML Entity Parser

• 1411. Number of Ways to Paint N × 3 Grid

Weekly Contest 183

• 1403. Minimum Subsequence in Non-Increasing Order

• 1404. Number of Steps to Reduce a Number in Binary Representation to One

• 1405. Longest Happy String

• 1406. Stone Game III

Biweekly Contest 23

• 1399. Count Largest Group

• 1400. Construct K Palindrome Strings

• 1401. Circle and Rectangle Overlapping

• 1402. Reducing Dishes

Weekly Contest 182

• 1394. Find Lucky Integer in an Array

• 1395. Count Number of Teams

• 1396. Design Underground System

• 1397. Find All Good Strings

Weekly Contest 181

• 1389. Create Target Array in the Given Order

• 1390. Four Divisors

• 1391. Check if There is a Valid Path in a Grid

• 1392. Longest Happy Prefix

Biweekly Contest 22

• 1385. Find the Distance Value Between Two Arrays

• 1386. Cinema Seat Allocation

• 1387. Sort Integers by The Power Value

• 1388. Pizza With 3n Slices

Weekly Contest 180

• 1380. Lucky Numbers in a Matrix

• 1381. Design a Stack With Increment Operation

• 1382. Balance a Binary Search Tree

• 1383. Maximum Performance of a Team

Weekly Contest 179

• 1374. Generate a String With Characters That Have Odd Counts

• 1375. Number of Times Binary String Is Prefix-Aligned

• 1376. Time Needed to Inform All Employees

• 1377. Frog Position After T Seconds

Biweekly Contest 21

• 1370. Increasing Decreasing String

• 1371. Find the Longest Substring Containing Vowels in Even Counts

• 1372. Longest ZigZag Path in a Binary Tree

• 1373. Maximum Sum BST in Binary Tree

Weekly Contest 178

• 1365. How Many Numbers Are Smaller Than the Current Number

• 1366. Rank Teams by Votes

• 1367. Linked List in Binary Tree

• 1368. Minimum Cost to Make at Least One Valid Path in a Grid

Weekly Contest 177

• 1360. Number of Days Between Two Dates

• 1361. Validate Binary Tree Nodes

• 1362. Closest Divisors

• 1363. Largest Multiple of Three

Biweekly Contest 20

• 1356. Sort Integers by The Number of 1 Bits

• 1357. Apply Discount Every n Orders

• 1358. Number of Substrings Containing All Three Characters

• 1359. Count All Valid Pickup and Delivery Options

Weekly Contest 176

• 1351. Count Negative Numbers in a Sorted Matrix

• 1352. Product of the Last K Numbers

• 1353. Maximum Number of Events That Can Be Attended

• 1354. Construct Target Array With Multiple Sums

Weekly Contest 175

• 1346. Check If N and Its Double Exist

• 1347. Minimum Number of Steps to Make Two Strings Anagram

• 1348. Tweet Counts Per Frequency

• 1349. Maximum Students Taking Exam

Biweekly Contest 19

• 1342. Number of Steps to Reduce a Number to Zero

• 1343. Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold

• 1344. Angle Between Hands of a Clock

• 1345. Jump Game IV

Weekly Contest 174

• 1337. The K Weakest Rows in a Matrix

• 1338. Reduce Array Size to The Half

• 1339. Maximum Product of Splitted Binary Tree

• 1340. Jump Game V

Weekly Contest 173

• 1332. Remove Palindromic Subsequences

• 1333. Filter Restaurants by Vegan-Friendly, Price and Distance

• 1334. Find the City With the Smallest Number of Neighbors at a Threshold Distance

• 1335. Minimum Difficulty of a Job Schedule

Biweekly Contest 18

• 1331. Rank Transform of an Array

• 1328. Break a Palindrome

• 1329. Sort the Matrix Diagonally

• 1330. Reverse Subarray To Maximize Array Value

Weekly Contest 172

• 1323. Maximum 69 Number

• 1324. Print Words Vertically

• 1325. Delete Leaves With a Given Value

• 1326. Minimum Number of Taps to Open to Water a Garden

Weekly Contest 171

• 1317. Convert Integer to the Sum of Two No-Zero Integers

• 1318. Minimum Flips to Make a OR b Equal to c

• 1319. Number of Operations to Make Network Connected

• 1320. Minimum Distance to Type a Word Using Two Fingers

Biweekly Contest 17

• 1313. Decompress Run-Length Encoded List

• 1314. Matrix Block Sum

• 1315. Sum of Nodes with Even-Valued Grandparent

• 1316. Distinct Echo Substrings

Weekly Contest 170

• 1309. Decrypt String from Alphabet to Integer Mapping

• 1310. XOR Queries of a Subarray

• 1311. Get Watched Videos by Your Friends

• 1312. Minimum Insertion Steps to Make a String Palindrome

Weekly Contest 169

• 1304. Find N Unique Integers Sum up to Zero

• 1305. All Elements in Two Binary Search Trees

• 1306. Jump Game III

• 1307. Verbal Arithmetic Puzzle

Biweekly Contest 16

• 1299. Replace Elements with Greatest Element on Right Side

• 1300. Sum of Mutated Array Closest to Target

• 1302. Deepest Leaves Sum

• 1301. Number of Paths with Max Score

Weekly Contest 168

• 1295. Find Numbers with Even Number of Digits

• 1296. Divide Array in Sets of K Consecutive Numbers

• 1297. Maximum Number of Occurrences of a Substring

• 1298. Maximum Candies You Can Get from Boxes

Weekly Contest 167

• 1290. Convert Binary Number in a Linked List to Integer

• 1291. Sequential Digits

• 1292. Maximum Side Length of a Square with Sum Less than or Equal to Threshold

• 1293. Shortest Path in a Grid with Obstacles Elimination

Biweekly Contest 15

• 1287. Element Appearing More Than 25% In Sorted Array

• 1288. Remove Covered Intervals

• 1286. Iterator for Combination

• 1289. Minimum Falling Path Sum II

Weekly Contest 166

• 1281. Subtract the Product and Sum of Digits of an Integer

• 1282. Group the People Given the Group Size They Belong To

• 1283. Find the Smallest Divisor Given a Threshold

• 1284. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix

Weekly Contest 165

• 1275. Find Winner on a Tic Tac Toe Game

• 1276. Number of Burgers with No Waste of Ingredients

• 1277. Count Square Submatrices with All Ones

• 1278. Palindrome Partitioning III

Biweekly Contest 14

• 1271. Hexspeak

• 1272. Remove Interval

• 1273. Delete Tree Nodes

• 1274. Number of Ships in a Rectangle

Weekly Contest 164

• 1266. Minimum Time Visiting All Points

• 1267. Count Servers that Communicate

• 1268. Search Suggestions System

• 1269. Number of Ways to Stay in the Same Place After Some Steps

Weekly Contest 163

• 1260. Shift 2D Grid

• 1261. Find Elements in a Contaminated Binary Tree

• 1262. Greatest Sum Divisible by Three

• 1263. Minimum Moves to Move a Box to Their Target Location

Biweekly Contest 13

• 1256. Encode Number

• 1257. Smallest Common Region

• 1258. Synonymous Sentences

• 1259. Handshakes That Don't Cross

Weekly Contest 162

• 1252. Cells with Odd Values in a Matrix

• 1253. Reconstruct a 2-Row Binary Matrix

• 1254. Number of Closed Islands

• 1255. Maximum Score Words Formed by Letters

Weekly Contest 161

• 1247. Minimum Swaps to Make Strings Equal

• 1248. Count Number of Nice Subarrays

• 1249. Minimum Remove to Make Valid Parentheses

• 1250. Check If It Is a Good Array

Biweekly Contest 12

• 1244. Design A Leaderboard

• 1243. Array Transformation

• 1245. Tree Diameter

• 1246. Palindrome Removal

Weekly Contest 160

• 1237. Find Positive Integer Solution for a Given Equation

• 1238. Circular Permutation in Binary Representation

• 1239. Maximum Length of a Concatenated String with Unique Characters

• 1240. Tiling a Rectangle with the Fewest Squares

Weekly Contest 159

• 1232. Check If It Is a Straight Line

• 1233. Remove Sub-Folders from the Filesystem

• 1234. Replace the Substring for Balanced String

• 1235. Maximum Profit in Job Scheduling

Biweekly Contest 11

• 1228. Missing Number In Arithmetic Progression

• 1229. Meeting Scheduler

• 1230. Toss Strange Coins

• 1231. Divide Chocolate

Weekly Contest 158

• 1221. Split a String in Balanced Strings

• 1222. Queens That Can Attack the King

• 1223. Dice Roll Simulation

• 1224. Maximum Equal Frequency

Weekly Contest 157

• 1217. Minimum Cost to Move Chips to The Same Position

• 1218. Longest Arithmetic Subsequence of Given Difference

• 1219. Path with Maximum Gold

• 1220. Count Vowels Permutation

Biweekly Contest 10

• 1213. Intersection of Three Sorted Arrays

• 1214. Two Sum BSTs

• 1215. Stepping Numbers

• 1216. Valid Palindrome III

Weekly Contest 156

• 1207. Unique Number of Occurrences

• 1208. Get Equal Substrings Within Budget

• 1209. Remove All Adjacent Duplicates in String II

• 1210. Minimum Moves to Reach Target with Rotations

Weekly Contest 155

• 1200. Minimum Absolute Difference

• 1201. Ugly Number III

• 1202. Smallest String With Swaps

• 1203. Sort Items by Groups Respecting Dependencies

Biweekly Contest 9

• 1196. How Many Apples Can You Put into the Basket

• 1197. Minimum Knight Moves

• 1198. Find Smallest Common Element in All Rows

• 1199. Minimum Time to Build Blocks

Weekly Contest 154

• 1189. Maximum Number of Balloons

• 1190. Reverse Substrings Between Each Pair of Parentheses

• 1191. K-Concatenation Maximum Sum

• 1192. Critical Connections in a Network

Weekly Contest 153

• 1184. Distance Between Bus Stops

• 1185. Day of the Week

• 1186. Maximum Subarray Sum with One Deletion

• 1187. Make Array Strictly Increasing

Biweekly Contest 8

• 1180. Count Substrings with Only One Distinct Letter

• 1181. Before and After Puzzle

• 1182. Shortest Distance to Target Color

• 1183. Maximum Number of Ones

Weekly Contest 152

• 1175. Prime Arrangements

• 1176. Diet Plan Performance

• 1177. Can Make Palindrome from Substring

• 1178. Number of Valid Words for Each Puzzle

Weekly Contest 151

• 1169. Invalid Transactions

• 1170. Compare Strings by Frequency of the Smallest Character

• 1171. Remove Zero Sum Consecutive Nodes from Linked List

• 1172. Dinner Plate Stacks

Biweekly Contest 7

• 1165. Single-Row Keyboard

• 1166. Design File System

• 1167. Minimum Cost to Connect Sticks

• 1168. Optimize Water Distribution in a Village

Weekly Contest 150

• 1160. Find Words That Can Be Formed by Characters

• 1161. Maximum Level Sum of a Binary Tree

• 1162. As Far from Land as Possible

• 1163. Last Substring in Lexicographical Order

Weekly Contest 149

• 1154. Day of the Year

• 1155. Number of Dice Rolls With Target Sum

• 1156. Swap For Longest Repeated Character Substring

• 1157. Online Majority Element In Subarray

Biweekly Contest 6

• 1150. Check If a Number Is Majority Element in a Sorted Array

• 1151. Minimum Swaps to Group All 1's Together

• 1152. Analyze User Website Visit Pattern

• 1153. String Transforms Into Another String

Weekly Contest 148

• 1144. Decrease Elements To Make Array Zigzag

• 1145. Binary Tree Coloring Game

• 1146. Snapshot Array

• 1147. Longest Chunked Palindrome Decomposition

Weekly Contest 147

• 1137. N-th Tribonacci Number

• 1138. Alphabet Board Path

• 1139. Largest 1-Bordered Square

• 1140. Stone Game II

Biweekly Contest 5

• 1133. Largest Unique Number

• 1134. Armstrong Number

• 1135. Connecting Cities With Minimum Cost

• 1136. Parallel Courses

Weekly Contest 146

• 1128. Number of Equivalent Domino Pairs

• 1129. Shortest Path with Alternating Colors

• 1130. Minimum Cost Tree From Leaf Values

• 1131. Maximum of Absolute Value Expression

Weekly Contest 145

• 1122. Relative Sort Array

• 1123. Lowest Common Ancestor of Deepest Leaves

• 1124. Longest Well-Performing Interval

• 1125. Smallest Sufficient Team

Biweekly Contest 4

• 1118. Number of Days in a Month

• 1119. Remove Vowels from a String

• 1120. Maximum Average Subtree

• 1121. Divide Array Into Increasing Sequences

Weekly Contest 144

• 1108. Defanging an IP Address

• 1109. Corporate Flight Bookings

• 1110. Delete Nodes And Return Forest

• 1111. Maximum Nesting Depth of Two Valid Parentheses Strings

Weekly Contest 143

• 1103. Distribute Candies to People

• 1104. Path In Zigzag Labelled Binary Tree

• 1105. Filling Bookcase Shelves

• 1106. Parsing A Boolean Expression

Biweekly Contest 3

• 1099. Two Sum Less Than K

• 1100. Find K-Length Substrings With No Repeated Characters

• 1101. The Earliest Moment When Everyone Become Friends

• 1102. Path With Maximum Minimum Value

Weekly Contest 142

• 1093. Statistics from a Large Sample

• 1094. Car Pooling

• 1095. Find in Mountain Array

• 1096. Brace Expansion II

Weekly Contest 141

• 1089. Duplicate Zeros

• 1090. Largest Values From Labels

• 1091. Shortest Path in Binary Matrix

• 1092. Shortest Common Supersequence

Biweekly Contest 2

• 1085. Sum of Digits in the Minimum Number

• 1086. High Five

• 1087. Brace Expansion

• 1088. Confusing Number II

Weekly Contest 140

• 1078. Occurrences After Bigram

• 1079. Letter Tile Possibilities

• 1080. Insufficient Nodes in Root to Leaf Paths

• 1081. Smallest Subsequence of Distinct Characters

Weekly Contest 139

• 1071. Greatest Common Divisor of Strings

• 1072. Flip Columns For Maximum Number of Equal Rows

• 1073. Adding Two Negabinary Numbers

• 1074. Number of Submatrices That Sum to Target

Biweekly Contest 1

• 1064. Fixed Point

• 1065. Index Pairs of a String

• 1066. Campus Bikes II

• 1067. Digit Count in Range

Weekly Contest 138

• 1051. Height Checker

• 1052. Grumpy Bookstore Owner

• 1053. Previous Permutation With One Swap

• 1054. Distant Barcodes

Weekly Contest 137

• 1046. Last Stone Weight

• 1047. Remove All Adjacent Duplicates In String

• 1048. Longest String Chain

• 1049. Last Stone Weight II

Weekly Contest 136

• 1041. Robot Bounded In Circle

• 1042. Flower Planting With No Adjacent

• 1043. Partition Array for Maximum Sum

• 1044. Longest Duplicate Substring

Weekly Contest 135

• 1037. Valid Boomerang

• 1038. Binary Search Tree to Greater Sum Tree

• 1039. Minimum Score Triangulation of Polygon

• 1040. Moving Stones Until Consecutive II

Weekly Contest 134

• 1033. Moving Stones Until Consecutive

• 1034. Coloring A Border

• 1035. Uncrossed Lines

• 1036. Escape a Large Maze

Weekly Contest 133

• 1029. Two City Scheduling

• 1030. Matrix Cells in Distance Order

• 1031. Maximum Sum of Two Non-Overlapping Subarrays

• 1032. Stream of Characters

Weekly Contest 132

• 1025. Divisor Game

• 1026. Maximum Difference Between Node and Ancestor

• 1027. Longest Arithmetic Subsequence

• 1028. Recover a Tree From Preorder Traversal

Weekly Contest 131

• 1021. Remove Outermost Parentheses

• 1022. Sum of Root To Leaf Binary Numbers

• 1023. Camelcase Matching

• 1024. Video Stitching

Weekly Contest 130

• 1018. Binary Prefix Divisible By 5

• 1017. Convert to Base -2

• 1019. Next Greater Node In Linked List

• 1020. Number of Enclaves

Weekly Contest 129

• 1013. Partition Array Into Three Parts With Equal Sum

• 1015. Smallest Integer Divisible by K

• 1014. Best Sightseeing Pair

• 1016. Binary String With Substrings Representing 1 To N

Weekly Contest 128

• 1009. Complement of Base 10 Integer

• 1010. Pairs of Songs With Total Durations Divisible by 60

• 1011. Capacity To Ship Packages Within D Days

• 1012. Numbers With Repeated Digits

Weekly Contest 127

• 1005. Maximize Sum Of Array After K Negations

• 1006. Clumsy Factorial

• 1007. Minimum Domino Rotations For Equal Row

• 1008. Construct Binary Search Tree from Preorder Traversal

Weekly Contest 126

• 1002. Find Common Characters

• 1003. Check If Word Is Valid After Substitutions

• 1004. Max Consecutive Ones III

• 1000. Minimum Cost to Merge Stones

Weekly Contest 125

• 0997. Find the Town Judge

• 0999. Available Captures for Rook

• 0998. Maximum Binary Tree II

• 1001. Grid Illumination

Weekly Contest 124

• 0993. Cousins in Binary Tree

• 0994. Rotting Oranges

• 0995. Minimum Number of K Consecutive Bit Flips

• 0996. Number of Squareful Arrays

Weekly Contest 123

• 0989. Add to Array-Form of Integer

• 0990. Satisfiability of Equality Equations

• 0991. Broken Calculator

• 0992. Subarrays with K Different Integers

Weekly Contest 122

• 0985. Sum of Even Numbers After Queries

• 0988. Smallest String Starting From Leaf

• 0986. Interval List Intersections

• 0987. Vertical Order Traversal of a Binary Tree

Weekly Contest 121

• 0984. String Without AAA or BBB

• 0981. Time Based Key-Value Store

• 0983. Minimum Cost For Tickets

• 0982. Triples with Bitwise AND Equal To Zero

Weekly Contest 120

• 0977. Squares of a Sorted Array

• 0978. Longest Turbulent Subarray

• 0979. Distribute Coins in Binary Tree

• 0980. Unique Paths III

Weekly Contest 119

• 0973. K Closest Points to Origin

• 0976. Largest Perimeter Triangle

• 0974. Subarray Sums Divisible by K

• 0975. Odd Even Jump

Weekly Contest 118

• 0970. Powerful Integers

• 0969. Pancake Sorting

• 0971. Flip Binary Tree To Match Preorder Traversal

• 0972. Equal Rational Numbers

Weekly Contest 117

• 0965. Univalued Binary Tree

• 0967. Numbers With Same Consecutive Differences

• 0966. Vowel Spellchecker

• 0968. Binary Tree Cameras

Weekly Contest 116

• 0961. N-Repeated Element in Size 2N Array

• 0962. Maximum Width Ramp

• 0963. Minimum Area Rectangle II

• 0964. Least Operators to Express Number

Weekly Contest 115

• 0957. Prison Cells After N Days

• 0958. Check Completeness of a Binary Tree

• 0959. Regions Cut By Slashes

• 0960. Delete Columns to Make Sorted III

Weekly Contest 114

• 0953. Verifying an Alien Dictionary

• 0954. Array of Doubled Pairs

• 0955. Delete Columns to Make Sorted II

• 0956. Tallest Billboard

Weekly Contest 113

• 0949. Largest Time for Given Digits

• 0951. Flip Equivalent Binary Trees

• 0950. Reveal Cards In Increasing Order

• 0952. Largest Component Size by Common Factor

Weekly Contest 112

• 0945. Minimum Increment to Make Array Unique

• 0946. Validate Stack Sequences

• 0947. Most Stones Removed with Same Row or Column

• 0948. Bag of Tokens

Weekly Contest 111

• 0941. Valid Mountain Array

• 0944. Delete Columns to Make Sorted

• 0942. DI String Match

• 0943. Find the Shortest Superstring

Weekly Contest 110

• 0937. Reorder Data in Log Files

• 0938. Range Sum of BST

• 0939. Minimum Area Rectangle

• 0940. Distinct Subsequences II

Weekly Contest 109

• 0933. Number of Recent Calls

• 0935. Knight Dialer

• 0934. Shortest Bridge

• 0936. Stamping The Sequence

Weekly Contest 108

• 0929. Unique Email Addresses

• 0930. Binary Subarrays With Sum

• 0931. Minimum Falling Path Sum

• 0932. Beautiful Array

Weekly Contest 107

• 0925. Long Pressed Name

• 0926. Flip String to Monotone Increasing

• 0927. Three Equal Parts

• 0928. Minimize Malware Spread II

Weekly Contest 106

• 0922. Sort Array By Parity II

• 0921. Minimum Add to Make Parentheses Valid

• 0923. 3Sum With Multiplicity

• 0924. Minimize Malware Spread

Weekly Contest 105

• 0917. Reverse Only Letters

• 0918. Maximum Sum Circular Subarray

• 0919. Complete Binary Tree Inserter

• 0920. Number of Music Playlists

Weekly Contest 104

• 0914. X of a Kind in a Deck of Cards

• 0915. Partition Array into Disjoint Intervals

• 0916. Word Subsets

• 0913. Cat and Mouse

Weekly Contest 103

• 0908. Smallest Range I

• 0909. Snakes and Ladders

• 0910. Smallest Range II

• 0911. Online Election

Weekly Contest 102

• 0905. Sort Array By Parity

• 0904. Fruit Into Baskets

• 0907. Sum of Subarray Minimums

• 0906. Super Palindromes

Weekly Contest 101

• 0900. RLE Iterator

• 0901. Online Stock Span

• 0902. Numbers At Most N Given Digit Set

• 0903. Valid Permutations for DI Sequence

Weekly Contest 100

• 0896. Monotonic Array

• 0897. Increasing Order Search Tree

• 0898. Bitwise ORs of Subarrays

• 0899. Orderly Queue

Weekly Contest 99

• 0892. Surface Area of 3D Shapes

• 0893. Groups of Special-Equivalent Strings

• 0894. All Possible Full Binary Trees

• 0895. Maximum Frequency Stack

Weekly Contest 98

• 0888. Fair Candy Swap

• 0890. Find and Replace Pattern

• 0889. Construct Binary Tree from Preorder and Postorder Traversal

• 0891. Sum of Subsequence Widths

Weekly Contest 97

• 0884. Uncommon Words from Two Sentences

• 0885. Spiral Matrix III

• 0886. Possible Bipartition

• 0887. Super Egg Drop

Weekly Contest 96

• 0883. Projection Area of 3D Shapes

• 0881. Boats to Save People

• 0880. Decoded String at Index

• 0882. Reachable Nodes In Subdivided Graph

Weekly Contest 95

• 0876. Middle of the Linked List

• 0877. Stone Game

• 0878. Nth Magical Number

• 0879. Profitable Schemes

Weekly Contest 94

• 0872. Leaf-Similar Trees

• 0874. Walking Robot Simulation

• 0875. Koko Eating Bananas

• 0873. Length of Longest Fibonacci Subsequence

Weekly Contest 93

• 0868. Binary Gap

• 0869. Reordered Power of 2

• 0870. Advantage Shuffle

• 0871. Minimum Number of Refueling Stops

Weekly Contest 92

• 0867. Transpose Matrix

• 0865. Smallest Subtree with all the Deepest Nodes

• 0866. Prime Palindrome

• 0864. Shortest Path to Get All Keys

Weekly Contest 91

• 0860. Lemonade Change

• 0863. All Nodes Distance K in Binary Tree

• 0861. Score After Flipping Matrix

• 0862. Shortest Subarray with Sum at Least K

Weekly Contest 90

• 0859. Buddy Strings

• 0856. Score of Parentheses

• 0858. Mirror Reflection

• 0857. Minimum Cost to Hire K Workers

Weekly Contest 89

• 0852. Peak Index in a Mountain Array

• 0853. Car Fleet

• 0855. Exam Room

• 0854. K-Similar Strings

Weekly Contest 88

• 0848. Shifting Letters

• 0849. Maximize Distance to Closest Person

• 0851. Loud and Rich

• 0850. Rectangle Area II

Weekly Contest 87

• 0844. Backspace String Compare

• 0845. Longest Mountain in Array

• 0846. Hand of Straights

• 0847. Shortest Path Visiting All Nodes

Weekly Contest 86

• 0840. Magic Squares In Grid

• 0841. Keys and Rooms

• 0842. Split Array into Fibonacci Sequence

• 0843. Guess the Word

Weekly Contest 85

• 0836. Rectangle Overlap

• 0838. Push Dominoes

• 0837. New 21 Game

• 0839. Similar String Groups

Weekly Contest 84

• 0832. Flipping an Image

• 0833. Find And Replace in String

• 0835. Image Overlap

• 0834. Sum of Distances in Tree

Weekly Contest 83

• 0830. Positions of Large Groups

• 0831. Masking Personal Information

• 0829. Consecutive Numbers Sum

• 0828. Count Unique Characters of All Substrings of a Given String