题目描述 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 can't predict the quality of milk from one day to the next, there are some regular patterns in th…

题目描述 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 can't predict the quality of milk from one day to the next, there are some regular patterns in th…

题面 初见SA 用了一个常见的按$height$分组的操作:二分答案,然后按$height$分组,遇到一个$height$小于$mid$的就丢进下一组并更新答案,如果最多的那组不少于$k$个说明可行 #include<cstdio> #include<cstring> #include<algorithm> using namespace std; ; int uni[N],num[N],sec[N],bkt[N]; int SA[N],rnk[N],hgt[N]; i…

题目大意:求可重叠的相同子串数量至少是K的子串最长长度 洛谷传送门 依然是后缀数组+二分,先用后缀数组处理出height 每次二分出一个长度x,然后去验证,在排序的后缀串集合里,有没有连续数量多于K个串的长度>=x, 但据说有一种高端做法是把二分换成单调队列,能减少常数,可惜我并没有看懂...... 原题好像是哈希的骚操作,但网上的题解好像都是后缀数组...... 比上一道男人八题简单多了,我原来的错代码竟然卡过去了70分.. #include <cstdio> #include <…

题意 显然如果有一个子串出现过\(k\)次,那么它必定是一个至少长为k的后缀序的\(LCP\),求出所有相邻的长为\(k-1\)的\(height\)数组的最小值,在其中取最大值即可 code: #include<bits/stdc++.h> using namespace std; const int maxn=20010; const int maxm=1000010; int n,m,num,ans; int a[maxn],sa[maxn],rk[maxn],oldrk[maxn],i…

洛谷题目链接:[USACO06DEC]牛奶模式Milk Patterns 题目描述 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 can't predict the quality of milk from one day to the next,…

1717: [Usaco2006 Dec]Milk Patterns 产奶的模式 Time Limit: 5 Sec  Memory Limit: 64 MBSubmit: 1017  Solved: 561[Submit][Status][Discuss] Description 农夫John发现他的奶牛产奶的质量一直在变动.经过细致的调查,他发现:虽然他不能预见明天产奶的质量,但连续的若干天的质量有很多重叠.我们称之为一个“模式”. John的牛奶按质量可以被赋予一个0到1000000之间的…

Milk Patterns   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 can't predict the quality of milk from one day to the next, there are some…

1717: [Usaco2006 Dec]Milk Patterns 产奶的模式 Time Limit: 5 Sec  Memory Limit: 64 MBSubmit: 881  Solved: 480[Submit][Status][Discuss] Description 农夫John发现他的奶牛产奶的质量一直在变动.经过细致的调查,他发现:虽然他不能预见明天产奶的质量,但连续的若干天的质量有很多重叠.我们称之为一个“模式”. John的牛奶按质量可以被赋予一个0到1000000之间的数…

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,…