标签:next数组 each instead 字符 pre clu 题意 长度 cst
| Time Limit: 3000MS | Memory Limit: 65536K | |
| Total Submissions: 47748 | Accepted: 19902 |
Description
Input
Output
Sample Input
abcd aaaa ababab .
Sample Output
1 4 3
Hint
#include <iostream>
#include <cstdio>
#include <cstring>
using namespace std;
int next[1000002];
char a[1000002];
void getNext()
{
int i=-1,j=0;
next[0]=-1;
int cnt=0;
while(a[j])
{
if(a[i]==a[j]||i==-1)
{
next[++j]=++i;
}
else
i=next[i];
}
}
int main()
{
while(scanf("%s",a)!=EOF)
{
if(a[0]==‘.‘) break;
int m=strlen(a);
getNext();
int cc=1;
if(m%(m-next[m])==0) //如果条件满足,m-next[m]为最短循环字串,然后求出该字符串由多少个最短循环字串构成
cc=m/(m-next[m]);
cout<<cc<<endl;
}
return 0;
}
标签:next数组 each instead 字符 pre clu 题意 长度 cst
原文地址:http://www.cnblogs.com/f-society/p/6701809.html