题目描述

不会

样例

#include<iostream>
#include<cstring>

using namespace std;
string s1, s2;
int main()
{
    cin >> s1 >> s2;

    if(s1.size() >= s2.size()) swap(s1, s2);

    if(s1 == s2.substr(0, s1.size())) 
    {
        cout << "true" << endl;
        return 0;
    }

    if(s2.find(s1) != -1) 
    {
        cout << "true" << endl;
        return 0;
    }
    bool flag = false;
    for(int i = 0; i < s1.size(); i ++) 
    {
        string a = s2.substr(s2.size() - s1.size() + i);
        string b = s2.substr(0, i);
        if(a + b == s1) flag = true;
    }
    if(flag) cout << "true" << endl;
    else cout << "false";
    return 0;
}