题目链接 https://open.kattis.com/problems/names 题意 给出一个字符串 有两种操作 0.在字符串的最末尾加一个字符 1.更改字符串中的一个字符 求最少的操作步数使得字符串变成回文串 思路 由于回文串具有对称关系 所以给出一串回文串 最多的操作步数 就是 len / 2 只改一半不同的字符就可以了 所以我们可以先将字符串倒置 然后依次一步一步 挪过去 与原串比较 比出有多少个不同的字符 那么操作次数就是 挪位数+不同字符个数/ 2 比如说 样例 kaia ai…

Palindrome Names Kattis - names Anna and Bob are having a baby. They both enjoy the advantage of having palindrome names, meaning that their names are spelled the same way forwards and backwards. Wanting to be good parents, they decide to give their…

回文 palindrome Python 字符串反转string[::-1] Slice notation "[a : b : c]" means "count in increments of c starting at a inclusive, up to b exclusive". If c is negative you count backwards, if omitted it is 1. If a is omitted then you start a…

Last week my friend brought me an evidence file duplicated from a Linux server, which distribution is CentOS 5.0 and the i18n is zh-tw. She wanna know whether there is any malware on this Linux server or not. OK. Let's get to work. I add this evidenc…

Given a string s, partition s such that every substring of the partition is a palindrome. Return all possible palindrome partitioning of s. Example: Input: "aab" Output: [ ["aa","b"], ["a","a","b"…

Description Given a string S, which consists of lowercase characters, you need to find the longest palindromic sub-string. A sub-string of a string S is another string S' that occurs "in" S. For example, "abst" is a sub-string of "…

[问题描写叙述] Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. For example: "A man, a plan, a canal: Panama" is a palindrome. "race a car" is not a palindrome. Note: Have you cons…

A Delayed Palindrome PAT-1136 我这里将数字转换为字符串使用的是stringstream字符串流 扩充:将字符串转换为数字可以使用stoi函数,函数头为cstdlib #include<iostream> #include<cstring> #include<string> #include<algorithm> #include<cstdio> #include<sstream> /* run this…

题目链接:http://codeforces.com/contest/7/problem/D D. Palindrome Degree time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output String s of length n is called k-palindrome, if it is a palindrome itself…

题目链接:点击打开链接 #include<stdio.h> #include<iostream> #include<string.h> #include<set> #include<vector> #include<map> #include<math.h> #include<queue> #include<string> #include<stdlib.h> #include<a…