摘要：两个数的和|| 给定一个排序数组，求出其中两个数的和等于指定target时，这两个数在原始数组中的下标,返回的下标从1开始 解题 原始数组已经是升序的，找出其中两个数的和等于target 定义两个指针，left right 计算x = num[left] + num[right] 的值 等于targ 阅读全文

摘要：题目： Given a string S, find the longest palindromic substring in S. You may assume that the maximum length of S is 1000, and there exists one unique longest palindromic substring. 翻译： 找出字符串s中最长的回文子串，... 阅读全文

摘要：题目： There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)). 题意： 两个排序后的数组nums1 和num... 阅读全文

摘要：Longest Substring Without Repeating CharactersGiven a string, find the length of the longest substring without repeating characters. For example, the ... 阅读全文

摘要：Add Two NumbersYou are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes co... 阅读全文

摘要：Two SumTotal Accepted: 125096 Total Submissions: 705262Question SolutionGiven an array of integers, find two numbers such that they add up to a specif... 阅读全文