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摘要： 题目：Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of the two... 阅读全文

摘要： 题目：Follow up for "Unique Paths":Now consider if some obstacles are added to the grids. How many unique paths would there be?An obstacle and empty spac... 阅读全文

摘要： 题目：A robot is located at the top-left corner of amxngrid (marked 'Start' in the diagram below).The robot can only move either down or right at any poi... 阅读全文

摘要： 题目：Given amxnmatrix, if an element is 0, set its entire row and column to 0. Do it in place.click to show follow up.Follow up:Did you use extra space?... 阅读全文

摘要： 题目：Given an array withnobjects colored red, white or blue, sort them so that objects of the same color are adjacent, with the colors in the order red,... 阅读全文

摘要： 题目：Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in... 阅读全文

摘要： 题目：A peak element is an element that is greater than its neighbors.Given an input array wherenum[i] ≠ num[i+1], find a peak element and return its ind... 阅读全文

摘要： 题目：Given an array of sizen, find the majority element. The majority element is the element that appears more than⌊ n/2 ⌋times.You may assume that the ... 阅读全文

摘要： 题目：Find the contiguous subarray within an array (containing at least one number) which has the largest sum.For example, given the array[−2,1,−3,4,−1,2... 阅读全文

摘要： 题目：Given two sorted integer arrays A and B, merge B into A as one sorted array.Note:You may assume that A has enough space (size that is greater or eq... 阅读全文