字典序UVa 1584 Circular Sequence

 #include <iostream>
 #include <algorithm>
 #include <cmath>
 #include <cstdio>
 #include<cstdlib>
 #include<cstring>
 #include <vector>
 #include <queue>
 #include <map>
 using namespace std;
 #define maxn 100100
 //字典序
 const int N = ;
 char c;
 char str[], ans[];
 int t, len;
 int main() {
     cin >> t;
     while (t--) {
         cin >> str;
         len = strlen(str);
         strcpy(ans, str);
         for (int i = ; i < len; i++) {
             c = str[len - ];
             for (int j = len - ; j >= ; j--) {
                 str[j] = str[j - ];
             }
             str[] = c;
             if (strcmp(str, ans) < ) {
                 strcpy(ans, str);
             }
         }
         printf("%s\n", ans);
     }
     return ;
 }