q1454739828的博客

###Two Sum题目描述Given an array of integers, return indices of the two numbers such that they add up to a specific target.You may assume that each input would have exactly one solution, and you may ...

###Add Two Numbers题目描述You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order and each of their nodes contain a single digit. Add th...

###Longest Substring Without Repeating CharactersGiven a string, find the length of the longest substring without repeating characters.Example 1:Input: “abcabcbb”Output: 3Explanation: The answer ...

###Median of Two Sorted Arrays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 (...

###Longest Palindromic Substring（最大回文字符串）####1、题目描述：Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000.Example 1:Input: “babad”Outp...

###ZigZag Conversion（ZigZag转换）####1、题目描述：The string “PAYPALISHIRING” is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for bet...