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Hash Table — animated LeetCode walkthroughs

LeetCode problems solved with Hash Table. Browse the complete tag, then watch the algorithm move — step-by-step animation, Python and Go.

898 problems · 761 animated · 137 locked

Start with a walkthrough

Full Hashing index

  1. 1Two SumWatch
  2. 3Longest Substring Without Repeating CharactersWatch
  3. 12Integer to RomanWatch
  4. 13Roman to IntegerWatch
  5. 17Letter Combinations of a Phone NumberWatch
  6. 30Substring with Concatenation of All WordsWatch
  7. 36Valid SudokuWatch
  8. 37Sudoku SolverWatch
  9. 41First Missing PositiveWatch
  10. 49Group AnagramsWatch
  11. 73Set Matrix ZeroesWatch
  12. 76Minimum Window SubstringWatch
  13. 105Construct Binary Tree from Preorder and Inorder TraversalWatch
  14. 106Construct Binary Tree from Inorder and Postorder TraversalWatch
  15. 126Word Ladder IIWatch
  16. 127Word LadderWatch
  17. 128Longest Consecutive SequenceWatch
  18. 133Clone GraphWatch
  19. 138Copy List with Random PointerWatch
  20. 139Word BreakWatch
  21. 140Word Break IIWatch
  22. 141Linked List CycleWatch
  23. 142Linked List Cycle IIWatch
  24. 146LRU CacheWatch
  25. 149Max Points on a LineWatch
  26. 159Longest Substring with At Most Two Distinct CharactersLocked
  27. 160Intersection of Two Linked ListsWatch
  28. 166Fraction to Recurring DecimalWatch
  29. 169Majority ElementWatch
  30. 170Two Sum III - Data structure designLocked
  31. 187Repeated DNA SequencesWatch
  32. 202Happy NumberWatch
  33. 205Isomorphic StringsWatch
  34. 208Implement Trie (Prefix Tree)Watch
  35. 214Shortest PalindromeWatch
  36. 217Contains DuplicateWatch
  37. 219Contains Duplicate IIWatch
  38. 229Majority Element IIWatch
  39. 242Valid AnagramWatch
  40. 244Shortest Word Distance IILocked
  41. 246Strobogrammatic NumberLocked
  42. 249Group Shifted StringsLocked
  43. 264Ugly Number IIWatch
  44. 266Palindrome PermutationLocked
  45. 267Palindrome Permutation IILocked
  46. 268Missing NumberWatch
  47. 288Unique Word AbbreviationLocked
  48. 290Word PatternWatch
  49. 291Word Pattern IILocked
  50. 299Bulls and CowsWatch
  51. 305Number of Islands IILocked
  52. 311Sparse Matrix MultiplicationLocked
  53. 314Binary Tree Vertical Order TraversalLocked
  54. 325Maximum Size Subarray Sum Equals kLocked
  55. 336Palindrome PairsWatch
  56. 340Longest Substring with At Most K Distinct CharactersLocked
  57. 347Top K Frequent ElementsWatch
  58. 348Design Tic-Tac-ToeLocked
  59. 349Intersection of Two ArraysWatch
  60. 350Intersection of Two Arrays IIWatch
  61. 352Data Stream as Disjoint IntervalsWatch
  62. 353Design Snake GameLocked
  63. 355Design TwitterWatch
  64. 356Line ReflectionLocked
  65. 358Rearrange String k Distance ApartLocked
  66. 359Logger Rate LimiterLocked
  67. 379Design Phone DirectoryLocked
  68. 380Insert Delete GetRandom O(1)Watch
  69. 381Insert Delete GetRandom O(1) - Duplicates allowedWatch
  70. 383Ransom NoteWatch
  71. 387First Unique Character in a StringWatch
  72. 389Find the DifferenceWatch
  73. 391Perfect RectangleWatch
  74. 395Longest Substring with At Least K Repeating CharactersWatch
  75. 398Random Pick IndexWatch
  76. 409Longest PalindromeWatch
  77. 421Maximum XOR of Two Numbers in an ArrayWatch
  78. 423Reconstruct Original Digits from EnglishWatch
  79. 424Longest Repeating Character ReplacementWatch
  80. 432All O`one Data StructureWatch
  81. 433Minimum Genetic MutationWatch
  82. 438Find All Anagrams in a StringWatch
  83. 442Find All Duplicates in an ArrayWatch
  84. 447Number of BoomerangsWatch
  85. 448Find All Numbers Disappeared in an ArrayWatch
  86. 451Sort Characters By FrequencyWatch
  87. 4544Sum IIWatch
  88. 457Circular Array LoopWatch
  89. 460LFU CacheWatch
  90. 480Sliding Window MedianWatch
  91. 491Non-decreasing SubsequencesWatch
  92. 496Next Greater Element IWatch
  93. 500Keyboard RowWatch
  94. 508Most Frequent Subtree SumWatch
  95. 519Random Flip MatrixWatch
  96. 522Longest Uncommon Subsequence IIWatch
  97. 523Continuous Subarray SumWatch
  98. 525Contiguous ArrayWatch
  99. 531Lonely Pixel ILocked
  100. 532K-diff Pairs in an ArrayWatch
  101. 533Lonely Pixel IILocked
  102. 535Encode and Decode TinyURLWatch
  103. 548Split Array with Equal SumLocked
  104. 554Brick WallWatch
  105. 560Subarray Sum Equals KWatch
  106. 567Permutation in StringWatch
  107. 572Subtree of Another TreeWatch
  108. 575Distribute CandiesWatch
  109. 582Kill ProcessLocked
  110. 588Design In-Memory File SystemLocked
  111. 594Longest Harmonious SubsequenceWatch
  112. 599Minimum Index Sum of Two ListsWatch
  113. 609Find Duplicate File in SystemWatch
  114. 616Add Bold Tag in StringLocked
  115. 621Task SchedulerWatch
  116. 631Design Excel Sum FormulaLocked
  117. 632Smallest Range Covering Elements from K ListsWatch
  118. 635Design Log Storage SystemLocked
  119. 645Set MismatchWatch
  120. 648Replace WordsWatch
  121. 652Find Duplicate SubtreesWatch
  122. 653Two Sum IV - Input is a BSTWatch
  123. 659Split Array into Consecutive SubsequencesWatch
  124. 666Path Sum IVLocked
  125. 676Implement Magic DictionaryWatch
  126. 677Map Sum PairsWatch
  127. 681Next Closest TimeLocked
  128. 690Employee ImportanceWatch
  129. 691Stickers to Spell WordWatch
  130. 692Top K Frequent WordsWatch
  131. 694Number of Distinct IslandsLocked
  132. 697Degree of an ArrayWatch
  133. 705Design HashSetWatch
  134. 706Design HashMapWatch
  135. 710Random Pick with BlacklistWatch
  136. 711Number of Distinct Islands IILocked
  137. 718Maximum Length of Repeated SubarrayWatch
  138. 720Longest Word in DictionaryWatch
  139. 721Accounts MergeWatch
  140. 726Number of AtomsWatch
  141. 734Sentence SimilarityLocked
  142. 736Parse Lisp ExpressionWatch
  143. 737Sentence Similarity IILocked
  144. 740Delete and EarnWatch
  145. 745Prefix and Suffix SearchWatch
  146. 748Shortest Completing WordWatch
  147. 752Open the LockWatch
  148. 756Pyramid Transition MatrixWatch
  149. 758Bold Words in StringLocked
  150. 760Find Anagram MappingsLocked
  151. 763Partition LabelsWatch
  152. 767Reorganize StringWatch
  153. 770Basic Calculator IVWatch
  154. 771Jewels and StonesWatch
  155. 781Rabbits in ForestWatch
  156. 791Custom Sort StringWatch
  157. 792Number of Matching SubsequencesWatch
  158. 804Unique Morse Code WordsWatch
  159. 805Split Array With Same AverageWatch
  160. 811Subdomain Visit CountWatch
  161. 815Bus RoutesWatch
  162. 817Linked List ComponentsWatch
  163. 819Most Common WordWatch
  164. 820Short Encoding of WordsWatch
  165. 822Card Flipping GameWatch
  166. 823Binary Trees With FactorsWatch
  167. 828Count Unique Characters of All Substrings of a Given StringWatch
  168. 833Find And Replace in StringWatch
  169. 839Similar String GroupsWatch
  170. 840Magic Squares In GridWatch
  171. 846Hand of StraightsWatch
  172. 854K-Similar StringsWatch
  173. 859Buddy StringsWatch
  174. 863All Nodes Distance K in Binary TreeWatch
  175. 865Smallest Subtree with all the Deepest NodesWatch
  176. 869Reordered Power of 2Watch
  177. 873Length of Longest Fibonacci SubsequenceWatch
  178. 874Walking Robot SimulationWatch
  179. 884Uncommon Words from Two SentencesWatch
  180. 888Fair Candy SwapWatch
  181. 889Construct Binary Tree from Preorder and Postorder TraversalWatch
  182. 890Find and Replace PatternWatch
  183. 893Groups of Special-Equivalent StringsWatch
  184. 895Maximum Frequency StackWatch
  185. 900RLE IteratorWatch
  186. 904Fruit Into BasketsWatch
  187. 911Online ElectionWatch
  188. 914X of a Kind in a Deck of CardsWatch
  189. 916Word SubsetsWatch
  190. 9233Sum With MultiplicityWatch
  191. 924Minimize Malware SpreadWatch
  192. 928Minimize Malware Spread IIWatch
  193. 929Unique Email AddressesWatch
  194. 930Binary Subarrays With SumWatch
  195. 939Minimum Area RectangleWatch
  196. 945Minimum Increment to Make Array UniqueWatch
  197. 947Most Stones Removed with Same Row or ColumnWatch
  198. 952Largest Component Size by Common FactorWatch
  199. 953Verifying an Alien DictionaryWatch
  200. 954Array of Doubled PairsWatch
  201. 957Prison Cells After N DaysWatch
  202. 959Regions Cut By SlashesWatch
  203. 961N-Repeated Element in Size 2N ArrayWatch
  204. 963Minimum Area Rectangle IIWatch
  205. 966Vowel SpellcheckerWatch
  206. 970Powerful IntegersWatch
  207. 974Subarray Sums Divisible by KWatch
  208. 981Time Based Key-Value StoreWatch
  209. 982Triples with Bitwise AND Equal To ZeroWatch
  210. 987Vertical Order Traversal of a Binary TreeWatch
  211. 992Subarrays with K Different IntegersWatch
  212. 996Number of Squareful ArraysWatch
  213. 997Find the Town JudgeWatch
  214. 1001Grid IlluminationWatch
  215. 1002Find Common CharactersWatch
  216. 1010Pairs of Songs With Total Durations Divisible by 60Watch
  217. 1015Smallest Integer Divisible by KWatch
  218. 1016Binary String With Substrings Representing 1 To NWatch
  219. 1027Longest Arithmetic SubsequenceWatch
  220. 1036Escape a Large MazeWatch
  221. 1044Longest Duplicate SubstringWatch
  222. 1048Longest String ChainWatch
  223. 1054Distant BarcodesWatch
  224. 1062Longest Repeating SubstringLocked
  225. 1072Flip Columns For Maximum Number of Equal RowsWatch
  226. 1074Number of Submatrices That Sum to TargetWatch
  227. 1079Letter Tile PossibilitiesWatch
  228. 1086High FiveLocked
  229. 1090Largest Values From LabelsWatch
  230. 1096Brace Expansion IIWatch
  231. 1100Find K-Length Substrings With No Repeated CharactersLocked
  232. 1110Delete Nodes And Return ForestWatch
  233. 1121Divide Array Into Increasing SequencesLocked
  234. 1122Relative Sort ArrayWatch
  235. 1123Lowest Common Ancestor of Deepest LeavesWatch
  236. 1124Longest Well-Performing IntervalWatch
  237. 1128Number of Equivalent Domino PairsWatch
  238. 1133Largest Unique NumberLocked
  239. 1138Alphabet Board PathWatch
  240. 1146Snapshot ArrayWatch
  241. 1147Longest Chunked Palindrome DecompositionWatch
  242. 1152Analyze User Website Visit PatternLocked
  243. 1153String Transforms Into Another StringLocked
  244. 1156Swap For Longest Repeated Character SubstringWatch
  245. 1160Find Words That Can Be Formed by CharactersWatch
  246. 1165Single-Row KeyboardLocked
  247. 1166Design File SystemLocked
  248. 1169Invalid TransactionsWatch
  249. 1170Compare Strings by Frequency of the Smallest CharacterWatch
  250. 1171Remove Zero Sum Consecutive Nodes from Linked ListWatch
  251. 1172Dinner Plate StacksWatch
  252. 1177Can Make Palindrome from SubstringWatch
  253. 1178Number of Valid Words for Each PuzzleWatch
  254. 1181Before and After PuzzleLocked
  255. 1189Maximum Number of BalloonsWatch
  256. 1198Find Smallest Common Element in All RowsLocked
  257. 1202Smallest String With SwapsWatch
  258. 1207Unique Number of OccurrencesWatch
  259. 1213Intersection of Three Sorted ArraysLocked
  260. 1218Longest Arithmetic Subsequence of Given DifferenceWatch
  261. 1221Split a String in Balanced StringsWatch
  262. 1224Maximum Equal FrequencyWatch
  263. 1244Design A LeaderboardLocked
  264. 1248Count Number of Nice SubarraysWatch
  265. 1255Maximum Score Words Formed by LettersWatch
  266. 1257Smallest Common RegionLocked
  267. 1258Synonymous SentencesLocked
  268. 1261Find Elements in a Contaminated Binary TreeWatch
  269. 1267Count Servers that CommunicateWatch
  270. 1275Find Winner on a Tic Tac Toe GameWatch
  271. 1282Group the People Given the Group Size They Belong ToWatch
  272. 1284Minimum Number of Flips to Convert Binary Matrix to Zero MatrixWatch
  273. 1296Divide Array in Sets of K Consecutive NumbersWatch
  274. 1297Maximum Number of Occurrences of a SubstringWatch
  275. 1311Get Watched Videos by Your FriendsWatch
  276. 1316Distinct Echo SubstringsWatch
  277. 1331Rank Transform of an ArrayWatch
  278. 1338Reduce Array Size to The HalfWatch
  279. 1345Jump Game IVWatch
  280. 1346Check If N and Its Double ExistWatch
  281. 1347Minimum Number of Steps to Make Two Strings AnagramWatch
  282. 1348Tweet Counts Per FrequencyWatch
  283. 1356Sort Integers by The Number of 1 BitsWatch
  284. 1357Apply Discount Every n OrdersWatch
  285. 1358Number of Substrings Containing All Three CharactersWatch
  286. 1365How Many Numbers Are Smaller Than the Current NumberWatch
  287. 1366Rank Teams by VotesWatch
  288. 1370Increasing Decreasing StringWatch
  289. 1371Find the Longest Substring Containing Vowels in Even CountsWatch
  290. 1386Cinema Seat AllocationWatch
  291. 1392Longest Happy PrefixWatch
  292. 1394Find Lucky Integer in an ArrayWatch
  293. 1396Design Underground SystemWatch
  294. 1399Count Largest GroupWatch
  295. 1400Construct K Palindrome StringsWatch
  296. 1410HTML Entity ParserWatch
  297. 1418Display Table of Food Orders in a RestaurantWatch
  298. 1419Minimum Number of Frogs CroakingWatch
  299. 1426Counting ElementsLocked
  300. 1429First Unique NumberLocked
  301. 1436Destination CityWatch
  302. 1442Count Triplets That Can Form Two Arrays of Equal XORWatch
  303. 1443Minimum Time to Collect All Apples in a TreeWatch
  304. 1452People Whose List of Favorite Companies Is Not a Subset of Another ListWatch
  305. 1460Make Two Arrays Equal by Reversing SubarraysWatch
  306. 1461Check If a String Contains All Binary Codes of Size KWatch
  307. 1477Find Two Non-overlapping Sub-arrays Each With Target SumWatch
  308. 1481Least Number of Unique Integers after K RemovalsWatch
  309. 1485Clone Binary Tree With Random PointerLocked
  310. 1487Making File Names UniqueWatch
  311. 1488Avoid Flood in The CityWatch
  312. 1490Clone N-ary TreeLocked
  313. 1496Path CrossingWatch
  314. 1497Check If Array Pairs Are Divisible by kWatch
  315. 1500Design a File Sharing SystemLocked
  316. 1506Find Root of N-Ary TreeLocked
  317. 1512Number of Good PairsWatch
  318. 1519Number of Nodes in the Sub-Tree With the Same LabelWatch
  319. 1520Maximum Number of Non-Overlapping SubstringsWatch
  320. 1525Number of Good Ways to Split a StringWatch
  321. 1540Can Convert String in K MovesWatch
  322. 1542Find Longest Awesome SubstringWatch
  323. 1546Maximum Number of Non-Overlapping Subarrays With Sum Equals TargetWatch
  324. 1554Strings Differ by One CharacterLocked
  325. 1562Find Latest Group of Size MWatch
  326. 1570Dot Product of Two Sparse VectorsLocked
  327. 1577Number of Ways Where Square of Number Is Equal to Product of Two NumbersWatch
  328. 1590Make Sum Divisible by PWatch
  329. 1593Split a String Into the Max Number of Unique SubstringsWatch
  330. 1600Throne InheritanceWatch
  331. 1603Design Parking SystemWatch
  332. 1604Alert Using Same Key-Card Three or More Times in a One Hour PeriodWatch
  333. 1612Check If Two Expression Trees are EquivalentLocked
  334. 1624Largest Substring Between Two Equal CharactersWatch
  335. 1630Arithmetic SubarraysWatch
  336. 1636Sort Array by Increasing FrequencyWatch
  337. 1638Count Substrings That Differ by One CharacterWatch
  338. 1640Check Array Formation Through ConcatenationWatch
  339. 1647Minimum Deletions to Make Character Frequencies UniqueWatch
  340. 1650Lowest Common Ancestor of a Binary Tree IIILocked
  341. 1654Minimum Jumps to Reach HomeWatch
  342. 1655Distribute Repeating IntegersWatch
  343. 1656Design an Ordered StreamWatch
  344. 1657Determine if Two Strings Are CloseWatch
  345. 1658Minimum Operations to Reduce X to ZeroWatch
  346. 1660Correct a Binary TreeLocked
  347. 1674Minimum Moves to Make Array ComplementaryWatch
  348. 1676Lowest Common Ancestor of a Binary Tree IVLocked
  349. 1679Max Number of K-Sum PairsWatch
  350. 1681Minimum IncompatibilityWatch
  351. 1684Count the Number of Consistent StringsWatch
  352. 1695Maximum Erasure ValueWatch
  353. 1698Number of Distinct Substrings in a StringLocked
  354. 1704Determine if String Halves Are AlikeWatch
  355. 1711Count Good MealsWatch
  356. 1713Minimum Operations to Make a SubsequenceWatch
  357. 1719Number Of Ways To Reconstruct A TreeWatch
  358. 1726Tuple with Same ProductWatch
  359. 1733Minimum Number of People to TeachWatch
  360. 1737Change Minimum Characters to Satisfy One of Three ConditionsWatch
  361. 1740Find Distance in a Binary TreeLocked
  362. 1742Maximum Number of Balls in a BoxWatch
  363. 1743Restore the Array From Adjacent PairsWatch
  364. 1748Sum of Unique ElementsWatch
  365. 1763Longest Nice SubstringWatch
  366. 1772Sort Features by PopularityLocked
  367. 1775Equal Sum Arrays With Minimum Number of OperationsWatch
  368. 1781Sum of Beauty of All SubstringsWatch
  369. 1782Count Pairs Of NodesWatch
  370. 1787Make the XOR of All Segments Equal to ZeroWatch
  371. 1788Maximize the Beauty of the GardenLocked
  372. 1790Check if One String Swap Can Make Strings EqualWatch
  373. 1794Count Pairs of Equal Substrings With Minimum DifferenceLocked
  374. 1796Second Largest Digit in a StringWatch
  375. 1797Design Authentication ManagerWatch
  376. 1804Implement Trie II (Prefix Tree)Locked
  377. 1805Number of Different Integers in a StringWatch
  378. 1807Evaluate the Bracket Pairs of a StringWatch
  379. 1814Count Nice Pairs in an ArrayWatch
  380. 1817Finding the Users Active MinutesWatch
  381. 1819Number of Different Subsequences GCDsWatch
  382. 1830Minimum Number of Operations to Make String SortedWatch
  383. 1832Check if the Sentence Is PangramWatch
  384. 1836Remove Duplicates From an Unsorted Linked ListLocked
  385. 1852Distinct Numbers in Each SubarrayLocked
  386. 1854Maximum Population YearWatch
  387. 1857Largest Color Value in a Directed GraphWatch
  388. 1862Sum of Floored PairsWatch
  389. 1865Finding Pairs With a Certain SumWatch
  390. 1876Substrings of Size Three with Distinct CharactersWatch
  391. 1893Check if All the Integers in a Range Are CoveredWatch
  392. 1897Redistribute Characters to Make All Strings EqualWatch
  393. 1912Design Movie Rental SystemWatch
  394. 1915Number of Wonderful SubstringsWatch
  395. 1923Longest Common SubpathWatch
  396. 1930Unique Length-3 Palindromic SubsequencesWatch
  397. 1932Merge BSTs to Create Single BSTWatch
  398. 1935Maximum Number of Words You Can TypeWatch
  399. 1938Maximum Genetic Difference QueryWatch
  400. 1940Longest Common Subsequence Between Sorted ArraysLocked
  401. 1941Check if All Characters Have Equal Number of OccurrencesWatch
  402. 1942The Number of the Smallest Unoccupied ChairWatch
  403. 1943Describe the PaintingWatch
  404. 1948Delete Duplicate Folders in SystemWatch
  405. 1960Maximum Product of the Length of Two Palindromic SubstringsWatch
  406. 1980Find Unique Binary StringWatch
  407. 1982Find Array Given Subset SumsWatch
  408. 1983Widest Pair of Indices With Equal Range SumLocked
  409. 1993Operations on TreeWatch
  410. 1994The Number of Good SubsetsWatch
  411. 1995Count Special QuadrupletsWatch
  412. 2001Number of Pairs of Interchangeable RectanglesWatch
  413. 2006Count Number of Pairs With Absolute Difference KWatch
  414. 2007Find Original Array From Doubled ArrayWatch
  415. 2008Maximum Earnings From TaxiWatch
  416. 2009Minimum Number of Operations to Make Array ContinuousWatch
  417. 2013Detect SquaresWatch
  418. 2014Longest Subsequence Repeated k TimesWatch
  419. 2019The Score of Students Solving Math ExpressionWatch
  420. 2023Number of Pairs of Strings With Concatenation Equal to TargetWatch
  421. 2025Maximum Number of Ways to Partition an ArrayWatch
  422. 2029Stone Game IXWatch
  423. 2031Count Subarrays With More Ones Than ZerosLocked
  424. 2032Two Out of ThreeWatch
  425. 2034Stock Price Fluctuation Watch
  426. 2043Simple Bank SystemWatch
  427. 2048Next Greater Numerically Balanced NumberWatch
  428. 2053Kth Distinct String in an ArrayWatch
  429. 2062Count Vowel Substrings of a StringWatch
  430. 2067Number of Equal Count SubstringsLocked
  431. 2068Check Whether Two Strings are Almost EquivalentWatch
  432. 2080Range Frequency QueriesWatch
  433. 2083Substrings That Begin and End With the Same LetterLocked
  434. 2085Count Common Words With One OccurrenceWatch
  435. 2094Finding 3-Digit Even NumbersWatch
  436. 2099Find Subsequence of Length K With the Largest SumWatch
  437. 2103Rings and RodsWatch
  438. 2107Number of Unique Flavors After Sharing K CandiesLocked
  439. 2115Find All Possible Recipes from Given SuppliesWatch
  440. 2121Intervals Between Identical ElementsWatch
  441. 2122Recover the Original ArrayWatch
  442. 2131Longest Palindrome by Concatenating Two Letter WordsWatch
  443. 2133Check if Every Row and Column Contains All NumbersWatch
  444. 2135Count Words Obtained After Adding a LetterWatch
  445. 2148Count Elements With Strictly Smaller and Greater Elements Watch
  446. 2150Find All Lonely Numbers in the ArrayWatch
  447. 2152Minimum Number of Lines to Cover PointsLocked
  448. 2154Keep Multiplying Found Values by TwoWatch
  449. 2156Find Substring With Given Hash ValueWatch
  450. 2157Groups of StringsWatch
  451. 2166Design BitsetWatch
  452. 2168Unique Substrings With Equal Digit FrequencyLocked
  453. 2170Minimum Operations to Make the Array AlternatingWatch
  454. 2182Construct String With Repeat LimitWatch
  455. 2183Count Array Pairs Divisible by KWatch
  456. 2186Minimum Number of Steps to Make Two Strings Anagram IIWatch
  457. 2190Most Frequent Number Following Key In an ArrayWatch
  458. 2196Create Binary Tree From DescriptionsWatch
  459. 2198Number of Single Divisor TripletsLocked
  460. 2201Count Artifacts That Can Be ExtractedWatch
  461. 2206Divide Array Into Equal PairsWatch
  462. 2215Find the Difference of Two ArraysWatch
  463. 2223Sum of Scores of Built StringsWatch
  464. 2225Find Players With Zero or One LossesWatch
  465. 2227Encrypt and Decrypt StringsWatch
  466. 2229Check if an Array Is ConsecutiveLocked
  467. 2244Minimum Rounds to Complete All TasksWatch
  468. 2248Intersection of Multiple ArraysWatch
  469. 2249Count Lattice Points Inside a CircleWatch
  470. 2250Count Number of Rectangles Containing Each PointWatch
  471. 2251Number of Flowers in Full BloomWatch
  472. 2254Design Video Sharing PlatformLocked
  473. 2260Minimum Consecutive Cards to Pick UpWatch
  474. 2261K Divisible Elements SubarraysWatch
  475. 2262Total Appeal of A StringWatch
  476. 2266Count Number of TextsWatch
  477. 2268Minimum Number of KeypressesLocked
  478. 2272Substring With Largest VarianceWatch
  479. 2273Find Resultant Array After Removing AnagramsWatch
  480. 2275Largest Combination With Bitwise AND Greater Than ZeroWatch
  481. 2283Check if Number Has Equal Digit Count and Digit ValueWatch
  482. 2284Sender With Largest Word CountWatch
  483. 2287Rearrange Characters to Make Target StringWatch
  484. 2295Replace Elements in an ArrayWatch
  485. 2301Match Substring After ReplacementWatch
  486. 2306Naming a CompanyWatch
  487. 2309Greatest English Letter in Upper and Lower CaseWatch
  488. 2325Decode the MessageWatch
  489. 2336Smallest Number in Infinite SetWatch
  490. 2341Maximum Number of Pairs in ArrayWatch
  491. 2342Max Sum of a Pair With Equal Sum of DigitsWatch
  492. 2347Best Poker HandWatch
  493. 2349Design a Number Container SystemWatch
  494. 2350Shortest Impossible Sequence of RollsWatch
  495. 2351First Letter to Appear TwiceWatch
  496. 2352Equal Row and Column PairsWatch
  497. 2353Design a Food Rating SystemWatch
  498. 2354Number of Excellent PairsWatch
  499. 2357Make Array Zero by Subtracting Equal AmountsWatch
  500. 2363Merge Similar ItemsWatch
  501. 2364Count Number of Bad PairsWatch
  502. 2365Task Scheduler IIWatch
  503. 2367Number of Arithmetic TripletsWatch
  504. 2368Reachable Nodes With RestrictionsWatch
  505. 2370Longest Ideal SubsequenceWatch
  506. 2374Node With Highest Edge ScoreWatch
  507. 2384Largest Palindromic NumberWatch
  508. 2385Amount of Time for Binary Tree to Be InfectedWatch
  509. 2395Find Subarrays With Equal SumWatch
  510. 2399Check Distances Between Same LettersWatch
  511. 2402Meeting Rooms IIIWatch
  512. 2404Most Frequent Even ElementWatch
  513. 2405Optimal Partition of StringWatch
  514. 2408Design SQLWatch
  515. 2416Sum of Prefix Scores of StringsWatch
  516. 2418Sort the PeopleWatch
  517. 2421Number of Good PathsWatch
  518. 2423Remove Letter To Equalize FrequencyWatch
  519. 2424Longest Uploaded PrefixWatch
  520. 2430Maximum Deletions on a StringWatch
  521. 2434Using a Robot to Print the Lexicographically Smallest StringWatch
  522. 2441Largest Positive Integer That Exists With Its NegativeWatch
  523. 2442Count Number of Distinct Integers After Reverse OperationsWatch
  524. 2451Odd String DifferenceWatch
  525. 2453Destroy Sequential TargetsWatch
  526. 2456Most Popular Video CreatorWatch
  527. 2459Sort Array by Moving Items to Empty SpaceLocked
  528. 2461Maximum Sum of Distinct Subarrays With Length KWatch
  529. 2465Number of Distinct AveragesWatch
  530. 2475Number of Unequal Triplets in ArrayWatch
  531. 2488Count Subarrays With Median KWatch
  532. 2489Number of Substrings With Fixed RatioLocked
  533. 2491Divide Players Into Teams of Equal SkillWatch
  534. 2499Minimum Total Cost to Make Arrays UnequalWatch
  535. 2501Longest Square Streak in an ArrayWatch
  536. 2502Design Memory AllocatorWatch
  537. 2506Count Pairs Of Similar StringsWatch
  538. 2508Add Edges to Make Degrees of All Nodes EvenWatch
  539. 2512Reward Top K StudentsWatch
  540. 2514Count AnagramsWatch
  541. 2516Take K of Each Character From Left and RightWatch
  542. 2521Distinct Prime Factors of Product of ArrayWatch
  543. 2524Maximum Frequency Score of a SubarrayLocked
  544. 2526Find Consecutive Integers from a Data StreamWatch
  545. 2529Maximum Count of Positive Integer and Negative IntegerWatch
  546. 2531Make Number of Distinct Characters EqualWatch
  547. 2537Count the Number of Good SubarraysWatch
  548. 2539Count the Number of Good SubsequencesLocked
  549. 2540Minimum Common ValueWatch
  550. 2547Minimum Cost to Split an ArrayWatch
  551. 2549Count Distinct Numbers on BoardWatch
  552. 2554Maximum Number of Integers to Choose From a Range IWatch
  553. 2561Rearranging FruitsWatch
  554. 2564Substring XOR QueriesWatch
  555. 2570Merge Two 2D Arrays by Summing ValuesWatch
  556. 2581Count Number of Possible Root NodesWatch
  557. 2584Split the Array to Make Coprime ProductsWatch
  558. 2586Count the Number of Vowel Strings in RangeWatch
  559. 2588Count the Number of Beautiful SubarraysWatch
  560. 2590Design a Todo ListLocked
  561. 2593Find Score of an Array After Marking All ElementsWatch
  562. 2597The Number of Beautiful SubsetsWatch
  563. 2598Smallest Missing Non-negative Integer After OperationsWatch
  564. 2605Form Smallest Number From Two Digit ArraysWatch
  565. 2606Find the Substring With Maximum CostWatch
  566. 2610Convert an Array Into a 2D Array With ConditionsWatch
  567. 2612Minimum Reverse OperationsWatch
  568. 2615Sum of DistancesWatch
  569. 2641Cousins in Binary Tree IIWatch
  570. 2653Sliding Subarray BeautyWatch
  571. 2657Find the Prefix Common Array of Two ArraysWatch
  572. 2661First Completely Painted Row or ColumnWatch
  573. 2670Find the Distinct Difference ArrayWatch
  574. 2671Frequency TrackerWatch
  575. 2682Find the Losers of the Circular GameWatch
  576. 2707Extra Characters in a StringWatch
  577. 2711Difference of Number of Distinct Values on DiagonalsWatch
  578. 2713Maximum Strictly Increasing Cells in a MatrixWatch
  579. 2716Minimize String LengthWatch
  580. 2718Sum of Matrix After QueriesWatch
  581. 2729Check if The Number is FascinatingWatch
  582. 2732Find a Good Subset of the MatrixWatch
  583. 2743Count Substrings Without Repeating CharacterLocked
  584. 2744Find Maximum Number of String PairsWatch
  585. 2747Count Zero Request ServersWatch
  586. 2748Number of Beautiful PairsWatch
  587. 2763Sum of Imbalance Numbers of All SubarraysWatch
  588. 2766Relocate MarblesWatch
  589. 2767Partition String Into Minimum Beautiful SubstringsWatch
  590. 2768Number of Black BlocksWatch
  591. 2780Minimum Index of a Valid SplitWatch
  592. 2781Length of the Longest Valid SubstringWatch
  593. 2782Number of Unique CategoriesLocked
  594. 2784Check if Array is GoodWatch
  595. 2791Count Paths That Can Form a Palindrome in a TreeWatch
  596. 2799Count Complete Subarrays in an ArrayWatch
  597. 2808Minimum Seconds to Equalize a Circular ArrayWatch
  598. 2813Maximum Elegance of a K-Length SubsequenceWatch
  599. 2815Max Pair Sum in an ArrayWatch
  600. 2830Maximize the Profit as the SalesmanWatch
  601. 2831Find the Longest Equal SubarrayWatch
  602. 2833Furthest Point From OriginWatch
  603. 2840Check if Strings Can be Made Equal With Operations IIWatch
  604. 2841Maximum Sum of Almost Unique SubarrayWatch
  605. 2842Count K-Subsequences of a String With Maximum BeautyWatch
  606. 2845Count of Interesting SubarraysWatch
  607. 2848Points That Intersect With CarsWatch
  608. 2852Sum of Remoteness of All CellsLocked
  609. 2856Minimum Array Length After Pair RemovalsWatch
  610. 2857Count Pairs of Points With Distance kWatch
  611. 2869Minimum Operations to Collect ElementsWatch
  612. 2870Minimum Number of Operations to Make Array EmptyWatch
  613. 2875Minimum Size Subarray in Infinite ArrayWatch
  614. 2897Apply Operations on Array to Maximize Sum of SquaresWatch
  615. 2898Maximum Linear Stock ScoreLocked
  616. 2902Count of Sub-Multisets With Bounded SumWatch
  617. 2910Minimum Number of Groups to Create a Valid AssignmentWatch
  618. 2913Subarrays Distinct Element Sum of Squares IWatch
  619. 2916Subarrays Distinct Element Sum of Squares IIWatch
  620. 2932Maximum Strong Pair XOR IWatch
  621. 2933High-Access EmployeesWatch
  622. 2935Maximum Strong Pair XOR IIWatch
  623. 2947Count Beautiful Substrings IWatch
  624. 2949Count Beautiful Substrings IIWatch
  625. 2950Number of Divisible SubstringsLocked
  626. 2953Count Complete SubstringsWatch
  627. 2955Number of Same-End SubstringsLocked
  628. 2956Find Common Elements Between Two ArraysWatch
  629. 2958Length of Longest Subarray With at Most K FrequencyWatch
  630. 2960Count Tested Devices After Test OperationsWatch
  631. 2963Count the Number of Good PartitionsWatch
  632. 2964Number of Divisible Triplet SumsLocked
  633. 2965Find Missing and Repeated ValuesWatch
  634. 2975Maximum Square Area by Removing Fences From a FieldWatch
  635. 2981Find Longest Special Substring That Occurs Thrice IWatch
  636. 2982Find Longest Special Substring That Occurs Thrice IIWatch
  637. 2983Palindrome Rearrangement QueriesWatch
  638. 2996Smallest Missing Integer Greater Than Sequential Prefix SumWatch
  639. 3002Maximum Size of a Set After RemovalsWatch
  640. 3005Count Elements With Maximum FrequencyWatch
  641. 3006Find Beautiful Indices in the Given Array IWatch
  642. 3008Find Beautiful Indices in the Given Array IIWatch
  643. 3009Maximum Number of Intersections on the ChartLocked
  644. 3013Divide an Array Into Subarrays With Minimum Cost IIWatch
  645. 3016Minimum Number of Pushes to Type Word IIWatch
  646. 3020Find the Maximum Number of Elements in SubsetWatch
  647. 3023Find Pattern in Infinite Stream ILocked
  648. 3026Maximum Good Subarray SumWatch
  649. 3029Minimum Time to Revert Word to Initial State IWatch
  650. 3031Minimum Time to Revert Word to Initial State IIWatch
  651. 3032Count Numbers With Unique Digits IILocked
  652. 3034Number of Subarrays That Match a Pattern IWatch
  653. 3035Maximum Palindromes After OperationsWatch
  654. 3036Number of Subarrays That Match a Pattern IIWatch
  655. 3037Find Pattern in Infinite Stream IILocked
  656. 3039Apply Operations to Make String EmptyWatch
  657. 3042Count Prefix and Suffix Pairs IWatch
  658. 3043Find the Length of the Longest Common PrefixWatch
  659. 3044Most Frequent PrimeWatch
  660. 3045Count Prefix and Suffix Pairs IIWatch
  661. 3046Split the ArrayWatch
  662. 3063Linked List FrequencyLocked
  663. 3071Minimum Operations to Write the Letter Y on a GridWatch
  664. 3076Shortest Uncommon Substring in an ArrayWatch
  665. 3078Match Alphanumerical Pattern in Matrix ILocked
  666. 3080Mark Elements on Array by Performing QueriesWatch
  667. 3081Replace Question Marks in String to Minimize Its ValueWatch
  668. 3083Existence of a Substring in a String and Its ReverseWatch
  669. 3084Count Substrings Starting and Ending with Given CharacterWatch
  670. 3085Minimum Deletions to Make String K-SpecialWatch
  671. 3090Maximum Length Substring With Two OccurrencesWatch
  672. 3092Most Frequent IDsWatch
  673. 3104Find Longest Self-Contained SubstringLocked
  674. 3120Count the Number of Special Characters IWatch
  675. 3121Count the Number of Special Characters IIWatch
  676. 3128Right TrianglesWatch
  677. 3134Find the Median of the Uniqueness ArrayWatch
  678. 3135Equalize Strings by Adding or Removing Characters at EndsLocked
  679. 3137Minimum Number of Operations to Make Word K-PeriodicWatch
  680. 3138Minimum Length of Anagram ConcatenationWatch
  681. 3143Maximum Points Inside the SquareWatch
  682. 3144Minimum Substring Partition of Equal Character FrequencyWatch
  683. 3146Permutation Difference between Two StringsWatch
  684. 3153Sum of Digit Differences of All PairsWatch
  685. 3158Find the XOR of Numbers Which Appear TwiceWatch
  686. 3159Find Occurrences of an Element in an ArrayWatch
  687. 3160Find the Number of Distinct Colors Among the BallsWatch
  688. 3162Find the Number of Good Pairs IWatch
  689. 3164Find the Number of Good Pairs IIWatch
  690. 3167Better Compression of StringLocked
  691. 3170Lexicographically Minimum String After Removing StarsWatch
  692. 3176Find the Maximum Length of a Good Subsequence IWatch
  693. 3177Find the Maximum Length of a Good Subsequence IIWatch
  694. 3184Count Pairs That Form a Complete Day IWatch
  695. 3185Count Pairs That Form a Complete Day IIWatch
  696. 3186Maximum Total Damage With Spell CastingWatch
  697. 3217Delete Nodes From Linked List Present in ArrayWatch
  698. 3223Minimum Length of String After OperationsWatch
  699. 3224Minimum Array Changes to Make Differences EqualWatch
  700. 3228Maximum Number of Operations to Move Ones to the EndWatch
  701. 3237Alt and Tab SimulationLocked
  702. 3238Find the Number of Winning PlayersWatch
  703. 3242Design Neighbor Sum ServiceWatch
  704. 3265Count Almost Equal Pairs IWatch
  705. 3267Count Almost Equal Pairs IIWatch
  706. 3272Find the Count of Good IntegersWatch
  707. 3279Maximum Total Area Occupied by PistonsLocked
  708. 3289The Two Sneaky Numbers of DigitvilleWatch
  709. 3291Minimum Number of Valid Strings to Form Target IWatch
  710. 3292Minimum Number of Valid Strings to Form Target IIWatch
  711. 3295Report Spam MessageWatch
  712. 3297Count Substrings That Can Be Rearranged to Contain a String IWatch
  713. 3298Count Substrings That Can Be Rearranged to Contain a String IIWatch
  714. 3299Sum of Consecutive SubsequencesLocked
  715. 3305Count of Substrings Containing Every Vowel and K Consonants IWatch
  716. 3306Count of Substrings Containing Every Vowel and K Consonants IIWatch
  717. 3311Construct 2D Grid Matching Graph LayoutWatch
  718. 3312Sorted GCD Pair QueriesWatch
  719. 3316Find Maximum Removals From Source StringWatch
  720. 3318Find X-Sum of All K-Long Subarrays IWatch
  721. 3321Find X-Sum of All K-Long Subarrays IIWatch
  722. 3325Count Substrings With K-Frequency Characters IWatch
  723. 3327Check if DFS Strings Are PalindromesWatch
  724. 3329Count Substrings With K-Frequency Characters IILocked
  725. 3331Find Subtree Sizes After ChangesWatch
  726. 3335Total Characters in String After Transformations IWatch
  727. 3337Total Characters in String After Transformations IIWatch
  728. 3351Sum of Good SubsequencesWatch
  729. 3365Rearrange K Substrings to Form Target StringWatch
  730. 3369Design an Array Statistics Tracker Locked
  731. 3371Identify the Largest Outlier in an ArrayWatch
  732. 3375Minimum Operations to Make Array Values Equal to KWatch
  733. 3378Count Connected Components in LCM GraphWatch
  734. 3381Maximum Subarray Sum With Length Divisible by KWatch
  735. 3389Minimum Operations to Make Character Frequencies EqualWatch
  736. 3391Design a 3D Binary Matrix with Efficient Layer TrackingLocked
  737. 3395Subsequences with a Unique Middle Mode IWatch
  738. 3396Minimum Number of Operations to Make Elements in Array DistinctWatch
  739. 3404Count Special SubsequencesWatch
  740. 3408Design Task ManagerWatch
  741. 3410Maximize Subarray Sum After Removing All Occurrences of One ElementWatch
  742. 3412Find Mirror Score of a StringWatch
  743. 3416Subsequences with a Unique Middle Mode IILocked
  744. 3422Minimum Operations to Make Subarray Elements EqualLocked
  745. 3425Longest Special PathWatch
  746. 3431Minimum Unlocked Indices to Sort NumsLocked
  747. 3434Maximum Frequency After Subarray OperationWatch
  748. 3438Find Valid Pair of Adjacent Digits in StringWatch
  749. 3442Maximum Difference Between Even and Odd Frequency IWatch
  750. 3443Maximum Manhattan Distance After K ChangesWatch
  751. 3447Assign Elements to Groups with ConstraintsWatch
  752. 3450Maximum Students on a Single BenchLocked
  753. 3458Select K Disjoint Special SubstringsWatch
  754. 3467Transform Array by ParityWatch
  755. 3471Find the Largest Almost Missing IntegerWatch
  756. 3481Apply SubstitutionsLocked
  757. 3483Unique 3-Digit Even NumbersWatch
  758. 3484Design SpreadsheetWatch
  759. 3486Longest Special Path IIWatch
  760. 3487Maximum Unique Subarray Sum After DeletionWatch
  761. 3488Closest Equal Element QueriesWatch
  762. 3493Properties GraphWatch
  763. 3505Minimum Operations to Make Elements Within K Subarrays EqualWatch
  764. 3507Minimum Pair Removal to Sort Array IWatch
  765. 3508Implement RouterWatch
  766. 3509Maximum Product of Subsequences With an Alternating Sum Equal to KWatch
  767. 3510Minimum Pair Removal to Sort Array IIWatch
  768. 3518Smallest Palindromic Rearrangement IIWatch
  769. 3522Calculate Score After Performing InstructionsWatch
  770. 3527Find the Most Common ResponseWatch
  771. 3529Count Cells in Overlapping Horizontal and Vertical SubstringsWatch
  772. 3531Count Covered BuildingsWatch
  773. 3532Path Existence Queries in a Graph IWatch
  774. 3541Find Most Frequent Vowel and ConsonantWatch
  775. 3542Minimum Operations to Convert All Elements to ZeroWatch
  776. 3543Maximum Weighted K-Edge PathWatch
  777. 3545Minimum Deletions for At Most K Distinct CharactersWatch
  778. 3548Equal Sum Grid Partition IIWatch
  779. 3551Minimum Swaps to Sort by Digit SumWatch
  780. 3552Grid Teleportation TraversalWatch
  781. 3556Sum of Largest Prime SubstringsWatch
  782. 3557Find Maximum Number of Non Intersecting SubstringsWatch
  783. 3568Minimum Moves to Clean the ClassroomWatch
  784. 3569Maximize Count of Distinct Primes After SplitWatch
  785. 3572Maximize Y‑Sum by Picking a Triplet of Distinct X‑ValuesWatch
  786. 3581Count Odd Letters from NumberLocked
  787. 3583Count Special TripletsWatch
  788. 3588Find Maximum Area of a TriangleWatch
  789. 3591Check if Any Element Has Prime FrequencyWatch
  790. 3597Partition String Watch
  791. 3606Coupon Code ValidatorWatch
  792. 3607Power Grid MaintenanceWatch
  793. 3623Count Number of Trapezoids IWatch
  794. 3625Count Number of Trapezoids IIWatch
  795. 3629Minimum Jumps to Reach End via Prime TeleportationWatch
  796. 3636Threshold Majority QueriesWatch
  797. 3641Longest Semi-Repeating SubarrayLocked
  798. 3654Minimum Sum After Divisible Sum DeletionsWatch
  799. 3659Partition Array Into K-Distinct GroupsWatch
  800. 3662Filter Characters by FrequencyLocked
  801. 3663Find The Least Frequent DigitWatch
  802. 3664Two-Letter Card GameWatch
  803. 3668Restore Finishing OrderWatch
  804. 3672Sum of Weighted Modes in SubarraysLocked
  805. 3678Smallest Absent Positive Greater Than AverageWatch
  806. 3679 Minimum Discards to Balance InventoryWatch
  807. 3682Minimum Index Sum of Common ElementsLocked
  808. 3684Maximize Sum of At Most K Distinct ElementsWatch
  809. 3690Split and Merge Array TransformationWatch
  810. 3692Majority Frequency CharactersWatch
  811. 3694Distinct Points Reachable After Substring RemovalWatch
  812. 3712Sum of Elements With Frequency Divisible by KWatch
  813. 3713Longest Balanced Substring IWatch
  814. 3714Longest Balanced Substring IIWatch
  815. 3715Sum of Perfect Square AncestorsWatch
  816. 3718Smallest Missing Multiple of KWatch
  817. 3719Longest Balanced Subarray IWatch
  818. 3720Lexicographically Smallest Permutation Greater Than TargetWatch
  819. 3721Longest Balanced Subarray IIWatch
  820. 3728Stable Subarrays With Equal Boundary and Interior SumWatch
  821. 3729Count Distinct Subarrays Divisible by K in Sorted ArrayWatch
  822. 3731Find Missing ElementsWatch
  823. 3735Lexicographically Smallest String After Reverse IILocked
  824. 3737Count Subarrays With Majority Element IWatch
  825. 3739Count Subarrays With Majority Element IIWatch
  826. 3740Minimum Distance Between Three Equal Elements IWatch
  827. 3741Minimum Distance Between Three Equal Elements IIWatch
  828. 3746Minimum String Length After Balanced RemovalsWatch
  829. 3749Evaluate Valid ExpressionsLocked
  830. 3755Find Maximum Balanced XOR Subarray LengthWatch
  831. 3760Maximum Substrings With Distinct StartWatch
  832. 3761Minimum Absolute Distance Between Mirror PairsWatch
  833. 3773Maximum Number of Equal Length RunsLocked
  834. 3779Minimum Number of Operations to Have Distinct ElementsWatch
  835. 3784Minimum Deletion Cost to Make All Characters EqualWatch
  836. 3785Minimum Swaps to Avoid Forbidden ValuesWatch
  837. 3790Smallest All-Ones MultipleWatch
  838. 3795Minimum Subarray Length With Distinct Sum At Least KWatch
  839. 3803Count Residue PrefixesWatch
  840. 3804Number of Centered SubarraysWatch
  841. 3805Count Caesar Cipher PairsWatch
  842. 3810Minimum Operations to Reach Target ArrayWatch
  843. 3811Number of Alternating XOR PartitionsWatch
  844. 3815Design Auction SystemWatch
  845. 3816Lexicographically Smallest String After Deleting Duplicate CharactersWatch
  846. 3822Design Order Management SystemLocked
  847. 3829Design Ride Sharing SystemWatch
  848. 3837Delayed Count of Equal ElementsLocked
  849. 3839Number of Prefix Connected GroupsWatch
  850. 3842Toggle Light BulbsWatch
  851. 3843First Element with Unique FrequencyWatch
  852. 3846Total Distance to Type a String Using One FingerLocked
  853. 3848Check Digitorial PermutationWatch
  854. 3851Maximum Requests Without Violating the LimitLocked
  855. 3852Smallest Pair With Different FrequenciesWatch
  856. 3853Merge Close CharactersWatch
  857. 3859Count Subarrays With K Distinct IntegersWatch
  858. 3860Unique Email GroupsLocked
  859. 3866First Unique Even ElementWatch
  860. 3868Minimum Cost to Equalize Arrays Using SwapsWatch
  861. 3873Maximum Points Activated with One AdditionWatch
  862. 3879Maximum Distinct Path Sum in a Binary TreeLocked
  863. 3885Design Event ManagerWatch
  864. 3889Mirror Frequency DistanceWatch
  865. 3890Integers With Multiple Sum of Two CubesWatch
  866. 3900Longest Balanced Substring After One SwapWatch
  867. 3913Sort Vowels by FrequencyWatch
  868. 3923Minimum Generations to Target PointWatch
  869. 3926Count Valid Word OccurrencesWatch
  870. 3927Minimize Array Sum Using Divisible ReplacementsWatch
  871. 3930Power Update After K-th Largest Insertion IILocked
  872. 3934Smallest Unique SubarrayWatch
  873. 3935Power Update After K-th Largest Insertion ILocked
  874. 3941Password StrengthWatch
  875. 3943Number of Pairs After IncrementWatch
  876. 3945Digit Frequency ScoreWatch
  877. 3948Lexicographically Maximum MEX ArrayWatch
  878. 3953Maximum Score with Co-Prime ElementWatch
  879. 3960Frequency Balance SubarrayWatch
  880. 3962Maximum Subarray Sum After at Most K SwapsWatch
  881. 3968Maximum Manhattan Distance After All MovesWatch
  882. 3969Valid Subarrays With Matching Sum Digits IWatch
  883. 3972Valid Subarrays With Matching Sum Digits IILocked
  884. 3978Unique Middle ElementWatch
  885. 3985Palindromic Subarray SumWatch
  886. 3991Sort Array Using Prefix ReversalsLocked
  887. 3999Minimum Number of String Groups Through TransformationsWatch
  888. 4005Minimum Operations to Make Array Equal IIILocked
  889. 4006Count Valid PrefixesWatch
  890. 4007Widest Possible FenceWatch
  891. 4019Merge Close Characters IILocked
  892. 4032Longest Subarray With at Most K Distinct Prime FactorsWatch
  893. 4033Valid K-Unique Subarrays IWatch
  894. 4038Count Integers Appearing in a Single BlockWatch
  895. 4042Valid K-Unique Subarrays IILocked
  896. 4047Minimum Operations to Make XOR of All Elements ZeroLocked
  897. 4048Count Values With Equally Spaced Occurrences IWatch
  898. 4049Count Values With Equally Spaced Occurrences IIWatch