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题目Single Number通过率45.1%难度Medium Given an array of integers, every element appearstwiceexcept for one. Find that single one.Note:Your algorithm should ... 阅读全文
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题目Merge Sorted Array通过率30.7%难度EasyGiven two sorted integer arrays A and B, merge B into A as one sorted array.Note:You may assume that A has enough sp... 阅读全文
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题目Merge Two Sorted Lists通过率33.2%难度EasyMerge two sorted linked lists and return it as a new list. The new list should be made by splicing together the ... 阅读全文
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题目Majority Element通过率33.8%难度EasyGiven an array of sizen, find the majority element. The majority element is the element that appears more than⌊ n/2 ⌋t... 阅读全文
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题目Excel Sheet Column Title通过率17.2%难度EasyGiven a positive integer, return its corresponding column title as appear in an Excel sheet.For example: 1 ... 阅读全文
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题目Excel Sheet Column Number通过率40.5%难度EasyRelated to questionExcel Sheet Column TitleGiven a column title as appear in an Excel sheet, return its corre... 阅读全文
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题目Pascal's Triangle II通过率29.8%难度EasyGiven an indexk, return thekthrow of the Pascal's triangle.For example, givenk= 3,Return[1,3,3,1].Note:Could you o... 阅读全文
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题目Pascal's Triangle通过率30.7%难度EasyGivennumRows, generate the firstnumRowsof Pascal's triangle.For example, givennumRows= 5,Return[ [1], [1,1], ... 阅读全文
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You are climbing a stair case. It takesnsteps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb... 阅读全文
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Given a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as a binary tree in which the depth... 阅读全文