如果自己是回文串可以做中心 如果一个串和另一个串的转置相等则可以凑一对 优先配对 #include <bits/stdc++.h> using namespace std; int n,m,u[105]; string str[105]; vector <int> a,b; signed main() { ios::sync_with_stdio(false); cin>>n>>m; for(int i=1;i<=n;i++) cin>>s…

Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This is case sensitive, for example "Aa" is not considered a palindrome here. Note: Assume the leng…

Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This is case sensitive, for example "Aa" is not considered a palindrome here. Note:Assume the lengt…

Problem: Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This is case sensitive, for example "Aa" is not considered a palindrome here. Assume the l…

原题链接在这里:https://leetcode.com/problems/longest-palindrome/ 题目: Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This is case sensitive, for example "Aa&qu…

Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This is case sensitive, for example "Aa" is not considered a palindrome here. Note:Assume the lengt…

409. Longest Palindrome Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This is case sensitive, for example "Aa" is not considered a palindrome her…

Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This is case sensitive, for example "Aa" is not considered a palindrome here. Note:Assume the lengt…

problem 409. Longest Palindrome solution1: class Solution { public: int longestPalindrome(string s) { map<char, int> temp; for(auto it:s) temp[it]++; , odd = , mid=false; for(auto it=temp.begin(); it!=temp.end(); ++it) { ==) even+=it->second; els…

Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This is case sensitive, for example "Aa" is not considered a palindrome here. Note:Assume the lengt…

A palindrome is a nonempty string over some alphabet that reads the same forwardand backward. Examples of palindromes are all strings of length 1, civic,racecar, and aibohphobia (fear of palindromes).Give an efficient algorithm to find the longest pa…

［抄题］: Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This is case sensitive, for example "Aa" is not considered a palindrome here. Note:Assume the…

链接:https://ac.nowcoder.com/acm/contest/908/G 题意: A palindrome is a symmetrical string, that is, a string read identically from left to right as well as from right to left. For example, ”a”.”aba”.“abba” are palindrome and “abc”.”aabb” are not. Let’s d…

/* * 5.Longest Palindrome substring * 2016-4-9 by Mingyang 自然而然的想到用dp来做 * 刚开始自己做的时候分的条件太细,两个index相等,相差小于3,还有其他 * 但这里这个if写的很好,一个代表了所有为true的情况 * 根本不用管为false的情况,因为自然而然为false * */ public String longestPalindrome(String s) { String res = " "; if (s =…

Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This is case sensitive, for example "Aa" is not considered a palindrome here. Note:Assume the lengt…

A palindrome is a string that reads the same from the left as it does from the right. For example, I, GAG and MADAM are palindromes, but ADAM is not. Here, we consider also the empty string as a palindrome. From any non-palindromic string, you can al…

题目: Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This is case sensitive, for example "Aa" is not considered a palindrome here. Note: Assume the…

409. Longest Palindrome Easy Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This is case sensitive, for example "Aa" is not considered a palindrom…

Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This is case sensitive, for example "Aa" is not considered a palindrome here. Note:Assume the lengt…

Returning back to problem solving, Gildong is now studying about palindromes. He learned that a palindrome is a string that is the same as its reverse. For example, strings "pop", "noon", "x", and "kkkkkk" are palin…

问题 该文章的最新版本已迁移至个人博客[比特飞],单击链接 https://www.byteflying.com/archives/3788 访问. 给定一个包含大写字母和小写字母的字符串,找到通过这些字母构造成的最长的回文串. 在构造过程中,请注意区分大小写.比如 "Aa" 不能当做一个回文字符串. 注意:假设字符串的长度不会超过 1010. 输入:"abccccdd" 输出:7 解释:我们可以构造的最长的回文串是"dccaccd", 它的长度…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 方法一:字典统计次数 方法二:HashSet 方法三:次数除以2再乘以2 日期 [LeetCode] 题目地址:https://leetcode.com/problems/longest-palindrome/ Difficulty: Easy 题目描述 Given a string which consists of lowercase or up…

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. 面DP题的考官都是神经病. .(吐槽) 貌似挺easy出回文的题,那么今天细致分析下DP的做法!! 以解我被DP问题虐成渣渣的心碎感觉.如有错误请指出…

C. Make Palindrome Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/600/problem/C Description A string is called palindrome if it reads the same from left to right and from right to left. For example "kazak", "oo&q…

1.题目 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" Output: "bab" Note: "aba" is also a valid answer. Example 2: Input: "cbbd…

A string is called palindrome if it reads the same from left to right and from right to left. For example "kazak", "oo", "r" and "mikhailrubinchikkihcniburliahkim" are palindroms, but strings "abb" and &qu…

题目链接:http://codeforces.com/contest/600/problem/C C. Make Palindrome time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output A string is called palindrome if it reads the same from left to right an…

对于字符串S, 要找到它最长的回文子串,能想到的最暴力方法,应该是对于每个元素i-th都向左向右对称搜索,最后用一个数组span 记录下相对应元素i-th为中心的回文子串长度. 那么问题来了: 1. 这样的方法,对于奇回文子串和偶回文子串的处理不一样,比如所“acbca” 和“acbbca” 2. 计算冗余,e.g. ”sscssabcccchccccba“中, 自左向右遍历计算的话,会发现, ”abcccchccccba“是对称的,而这个回文字符串里又左右对称分别包含了两个回文子字符”cccc…

A positive integer is called a palindrome if its representation in the decimal system is the same when read from left to right and from right to left. For a given positive integer K of not more than 1000000 digits, write the value of the smallest pal…

http://codeforces.com/problemset/problem/600/C: 题意:给你一个小写字母组成的英文串,将它转换为回文串,要求,改变的字母的个数最小,移动字母不算改变字母. 所得的串字典序是最小的.最后输出所得到的串. 思路:要求改变的字母数最小那么用贪心的思想,就把原来的字母尽可能多的填入要求的串中. 首先,先把原串中的字母统计出来,开个数组存对应的字符的个数,然后从'a'开始循环,如果对应字母的个数大于1: 如果是偶数个的话,就在所求串两端一边加一个,可以正好加完…