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摘要： 标题：Find Peak Element通过率：32.3%难度：中等A peak element is an element that is greater than its neighbors.Given an input array wherenum[i] ≠ num[i+1], find a ... 阅读全文

摘要： 标题：Search a 2D Matrix通过率31.3%难度中等Write an efficient algorithm that searches for a value in anmxnmatrix. This matrix has the following properties:Integ... 阅读全文

摘要： 标题：Set Matrix Zeroes通过率：31.3%难度：中等Given amxnmatrix, if an element is 0, set its entire row and column to 0. Do it in place.click to show follow up.Fol... 阅读全文

摘要： enumerate 函数用于遍历序列中的元素以及它们的下标：>>> for i,j in enumerate(('a','b','c')):print i,j0 a1 b2 c>>> for i,j in enumerate([1,2,3]):print i,j0 11 22 3>>> for i,... 阅读全文

摘要： 标题：Gray Code通过率：32.4%难度：中等The gray code is a binary numeral system where two successive values differ in only one bit.Given a non-negative integernrep... 阅读全文

摘要： ---恢复内容开始---标题：Letter Combinations of a Phone Number通过率：26.6%难度：中等Given a digit string, return all possible letter combinations that the number could ... 阅读全文

摘要： 标题：Best Time to Buy and Sell Stock II通过率：37.3%难度：中等Say you have an array for which theithelement is the price of a given stock on dayi.Design an algor... 阅读全文

摘要： 标题：Best Time to Buy and Sell Stock通过率：32%难度：中等Say you have an array for which theithelement is the price of a given stock on dayi.If you were only per... 阅读全文

摘要： 标题:Spiral Matrix II通过率：31.3难度：中等Given an integern, generate a square matrix filled with elements from 1 ton2in spiral order.For example,Givenn=3,You s... 阅读全文

摘要： 标题：ZigZag Conversion通过率：22.7%难度：简单The string"PAYPALISHIRING"is written in a zigzag pattern on a given number of rows like this: (you may want to displ... 阅读全文