标签:char == printf stream tracking mod char s ace namespace
id=2406
题目大意:找出字串最大循环次数
方法:和上一个一样 传送门
#include <iostream> #include <cstdio> #include <algorithm> #include <cstring> using namespace std; int next[1000010]; char str[1000010]; void getnext(char *s, int len) { int i = 0; int j = -1; next[0] = -1; while(i < len) { if(j == -1 || str[i] == str[j]) next[++i] = ++j; else j = next[j]; } } int main() { int n; int cas = 0; while(~scanf("%s",str) && str[0]!='.') { int len = strlen(str); getnext(str,len); if(next[len] && len%(len-next[len])==0) printf("%d\n",len/(len-next[len])); else printf("1\n"); } return 0; }
标签:char == printf stream tracking mod char s ace namespace
原文地址:http://www.cnblogs.com/mfmdaoyou/p/7106540.html