poj 3261 - 相关文章

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POJ 3261 Milk Patterns （求可重叠的k次最长重复子串）+后缀数组模板

Milk Patterns Time Limit: 5000MS Memory Limit: 65536K Total Submissions: 7586 Accepted: 3448 Case Time Limit: 2000MS Description Farmer John has noticed that the quality of milk given by his cows varies from day to day. On further investigation,…

POJ 3261 可重叠k次最长重复子串

Milk Patterns Time Limit: 5000MS Memory Limit: 65536K Total Submissions: 13127 Accepted: 5842 Case Time Limit: 2000MS Description Farmer John has noticed that the quality of milk given by his cows varies from day to day. On further investigation,…

poj 3261 后缀数组找反复出现k次的子串（子串能够重叠）

题目:http://poj.org/problem?id=3261 仍然是后缀数组的典型应用----后缀数组+lcp+二分做的蛮顺的,1A 可是大部分时间是在调试代码.由于模板的全局变量用混了,而自己又忘了.,,等西安邀请赛还有四省赛结束之后,该冷静反思下尝试拜托模板了错误 :1.k用错,题目的k和模板的k用混; 2.还是二分的C()函数,这个事实上跟前一篇<poj 1226 hdu 1238 Substrings 求若干字符串正串及反串的最长公共子串 2002亚洲赛天津预选题>的C函…

POJ 3261 后缀数组

题目链接:http://poj.org/problem?id=3261 题意:约翰注意到奶牛产奶的之类是不断变化的,虽然他不能预测从当天到下一天的变化情况但是他知道变化是有规律的,牛奶的质量由一个整数表示,范围从0到1000000,现在给定一个长度为n的序列,要求找到一个最大子序列,该子序列重复出现至少k次,各个出现部分可有重叠,求最长的长度.简单来说就是可重叠的k 次最长重复子串. 思路:直接根据09年oi论文<<后缀数组——出来字符串的有力工具>>的解法,先二分答案x,然后将后…

POJ 3261 Milk Patterns 可重复k次的最长重复子串

Milk PatternsTime Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://poj.org/problem?id=3261 Description Farmer John has noticed that the quality of milk given by his cows varies from day to day. On further investigation, he discovered that although he c…

POJ 3261 Milk Patterns（后缀数组+二分答案）

[题目链接] http://poj.org/problem?id=3261 [题目大意] 求最长可允许重叠的出现次数不小于k的子串. [题解] 对原串做一遍后缀数组,二分子串长度x,将前缀相同长度超过x的后缀分组, 如果存在一个大小不小于k的分组,则说明答案可行,分治得到最大可行解就是答案. [代码] #include <cstdio> #include <cstring> #include <vector> using namespace std; const int…

POJ 3261 Milk Patterns 【后缀数组最长可重叠子串】

题目题目:http://poj.org/problem?id=3261 Milk Patterns Time Limit: 5000MS Memory Limit: 65536K Total Submissions: 18880 Accepted: 8336 Case Time Limit: 2000MS Description Farmer John has noticed that the quality of milk given by his cows varies from day t…