1003 ID Codes

一个很简单的stl应用

next_permutation返回一个布尔值

#include<iostream>#include<cstdio>#include<cmath>#include<vector>#include<algorithm>#include<queue>#include<ctime>#include<cstring>#include<stdlib.h>#include<map>using namespace std;string s;int len;int main(){while(1){cin >> s;if(s[0] == '#') break;if(next_permutation(s.begin(),s.end()))cout<<s;else cout<<"No Successor";printf("\n");}return 0;}