Kata
算法、数学，以及其他需要推演的问题。一题一页，题解默认折起。
63题目
57练习天数
5最长连续
2026-07-24最近练习
最近一题
打开063Minimum Common Value
Given two sorted integer arrays return their smallest common value or -1 if none exists
热力图63 题
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无1 题2 题
2026
难度
63 / 63063Minimum Common Valuearraytwo-pointersEasy062Long Pressed Namestringtwo-pointersEasy061Is Subsequencestringtwo-pointersEasy060Valid Palindrome IIstringtwo-pointersEasy059Reverse Vowels of a Stringstringtwo-pointersEasy058Merge Strings Alternatelystringtwo-pointersEasy057Online Stock Spanstackdesignmonotonic-stackdata-streamMedium056Daily Temperaturesarraystackmonotonic-stackMedium055Final Prices With a Special Discount in a Shoparraystackmonotonic-stackEasy054Next Greater Element Iarrayhash-tablestackmonotonic-stackEasy053Build an Array With Stack OperationsarraystacksimulationMedium052Crawler Log FolderarraystringstacksimulationEasy051Clear DigitsstringstacksimulationEasy050Make The String GreatstringstackEasy049Remove All Adjacent Duplicates In StringstringstackEasy048Backspace String Comparestringstacktwo-pointersEasy047Baseball GamearraystacksimulationEasy046Single Numberarraybit-manipulationEasy045Majority Elementarrayhash-tableEasy044Factorial Trailing ZeroesmathMedium043Intersection of Two Arrays IIarrayhash-tableEasy042Bulb SwitchermathMedium041Happy Numberhash-tablemathEasy040Nim Gamemathgame-theoryEasy039Intersection of Two Arraysarrayhash-tablesetEasy038Word Patternhash-tablestringEasy037Isomorphic Stringshash-tablestringEasy036Longest Palindromehash-tablestringcountinggreedyEasy035Find the Differencehash-tablestringcountingEasy034First Unique Character in a Stringhash-tablestringcountingEasy033Ransom Notehash-tablestringcountingEasy032Jewels and Stoneshash-tablestringsetEasy031Cousins in Binary Treebinary-treebfsdfsEasy030Fizz BuzzarraystringsimulationEasy029Average of Levels in Binary Treebinary-treebfsqueueEasy028Sum of Left Leavesbinary-treerecursiondfsEasy027Binary Tree Pathsbinary-treerecursiondfsEasy026Path Sumbinary-treerecursiondfsEasy025Minimum Depth of Binary Treebinary-treerecursiondfsbfsEasy024Diameter of Binary Treebinary-treerecursiondfsEasy023Balanced Binary Treebinary-treerecursiondfsEasy022Subtree of Another Treebinary-treerecursiondfsEasy021Symmetric Treebinary-treerecursiondfsbfsEasy020Same Treebinary-treerecursiondfsEasy019Maximum Depth of Binary Treebinary-treerecursiondfsbfsEasy018Invert Binary Treebinary-treerecursiondfsbfsEasy017Plus OnearraymathEasy016Middle of the Linked Listlinked-listtwo-pointersEasy015Linked List Cyclelinked-listtwo-pointershash-tableEasy014Reverse Linked Listlinked-listrecursionEasy013Roman to Integerstringhash-tableEasy012First Bad Versionbinary-searchinteractiveEasy011Climbing Stairsdynamic-programmingmathEasy010Move Zeroesarraytwo-pointersEasy009Maximum Subarrayarraydynamic-programmingEasy008Valid Palindrometwo-pointersstringEasy007Contains Duplicatearrayhash-tableEasy006Merge Two Sorted Listslinked-listrecursionEasy005Valid ParenthesesstackstringEasy004Valid Anagramhash-mapstringsortingEasy003Binary Searcharraybinary-searchEasy002Best Time to Buy and Sell Stockarraydynamic-programmingsingle-passEasy001Two Sumhash-maparrayEasy