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原创 LeetCode题解 —— 7. 整数反转

题目描述给出一个 32 位的有符号整数，你需要将这个整数中每位上的数字进行反转。示例 1:输入: 123输出: 321示例 2:输入: -123输出: -321示例 3:输入: 120输出: 21注意:假设我们的环境只能存储得下 32 位的有符号整数，则其数值范围为 [−2^31, 2^31 − 1]。请根据这个假设，如果反转后整数溢出那么就返回 0。解题思想...

2018-11-22 22:26:09 224

题目描述The string &amp;amp;quot;PAYPALISHIRING&amp;amp;quot; 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 better legibility)P A H NA P ...

2018-05-24 10:37:20 255

转载 C++ 输入ctrl+z 不能再使用cin的问题

转载自http://www.cnblogs.com/hubavyn/p/3996413.html问题介绍：程序步骤是开始往容器里面写数据，以Ctrl+Z来终止输入流，然后需要输入一个数据，来判断容器中是否有这个数据。源代码如下：#include<iostream>#include<map>#include<string>#include<vector>using namespace std

2018-05-23 22:05:33 941

原创 LeetCode题解 —— 5. 最长回文子串

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: &amp;quot;babad&amp;quot;Output: &amp;quot;bab&amp;quot;Note: &amp;quo

2018-05-23 21:59:02 212

原创 LeetCode题解 —— 4. 寻找两个有序数组的中位数

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)).example1nums1 = [1, 3]nums2 =

2018-05-22 22:59:02 447

原创 LeetCode题解 —— 3. 无重复字符的最长子串

Given a string, find the length of the longest substring without repeating characters.exampleGiven “abcabcbb”, the answer is “abc”, which the length is 3.Given “bbbbb”, the answer is “b”, with the leng

2018-05-22 22:55:53 333

原创 LeetCode题解 —— 2. 两数相加

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 the two numbers and re...

2018-05-22 22:50:50 194

原创 LeetCode题解 —— 1. 两数之和

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 not use the...

2018-05-22 22:49:55 336

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