转载请注明出处: http://www.cnblogs.com/fraud/          ——by fraud 求最长回文子串. http://acm.timus.ru/problem.aspx?space=1&num=1297 Manacher模板题,复杂度O(n),做这题纯属是为了验一下自己写的模板是否正确. 当然这题也可以用后缀数组来搞 #include <iostream> #include <sstream> #include <ios> #in…

链接:传送门 思路:Manacher模板题,寻找串中的最长回文子串 /************************************************************************* > File Name: hdu3068.cpp > Author: WArobot > Blog: http://www.cnblogs.com/WArobot/ > Created Time: 2017年05月19日 星期五 13时09分43秒 *********…

1297. Palindrome Time limit: 1.0 secondMemory limit: 64 MB The “U.S. Robots” HQ has just received a rather alarming anonymous letter. It states that the agent from the competing «Robots Unlimited» has infiltrated into “U.S. Robotics”. «U.S. Robots» s…

1297. Palindrome Time limit: 1.0 second Memory limit: 64 MB The “U.S. Robots” HQ has just received a rather alarming anonymous letter. It states that the agent from the competing «Robots Unlimited» has infiltrated into “U.S. Robotics”. «U.S. Robots»…

The “U.S. Robots” HQ has just received a rather alarming anonymous letter. It states that the agent from the competing «Robots Unlimited» has infiltrated into “U.S. Robotics”. «U.S. Robots» security service would have already started an undercover op…

D - Palindrome Time Limit:1000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Submit Status Practice URAL 1297 Description The “U.S. Robots” HQ has just received a rather alarming anonymous letter. It states that the agent from the comp…

题目链接 题意:求给定的字符串的最长回文子串 分析:做法是构造一个新的字符串是原字符串+反转后的原字符串(这样方便求两边回文的后缀的最长前缀),即newS = S + '$' + revS,枚举回文串中心位置,RMQ询问LCP = min (height[rank[l]+1] to height[rank[r]]),注意的是RMQ传入参数最好是后缀的位置,因为它们在树上的顺序未知,且左边还要+1. #include <cstdio> #include <algorithm> #in…

题意:找串的最长回文字串(连续) 题解:manacher版题 一些理解:首位加上任意两个字符是为了判断边界. 本算法主要是为了 1.省去奇偶分类讨论. 2.防止形如aaaaaaa的串使得暴力算法蜕化为n^2; #define _CRT_SECURE_NO_WARNINGS #include<stdio.h> #include<queue> #include<algorithm> #include<iostream> #include<vector>…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=3068 题目大意:求字符串s中最长的回文子串 解题思路:manacher模板 代码 #include<iostream> #include<cstdio> #include<algorithm> #include<cstring> using namespace std; ; int len1,len2; int p[N]; char s[N],str[N]; v…

题目链接:https://vjudge.net/problem/URAL-1297 1297. Palindrome Time limit: 1.0 secondMemory limit: 64 MB The “U.S. Robots” HQ has just received a rather alarming anonymous letter. It states that the agent from the competing «Robots Unlimited» has infiltr…