codeforces/1881A.cpp at main · Nithin0306/codeforces · GitHub

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#include <bits/stdc++.h>
using namespace std;


bool check(string s, string x){
    if (x.size() < s.size())
        return false;

        for (int i = 0; i < x.size() - s.size() + 1; i++){
            if (x.substr(i,s.size()) == s)
                return true;
        }
    return false;
}

int main(){
    int t;
    cin >> t;

    while (t--){
        long long n, m;
        cin >> n >> m;

        string x;
        cin >> x;
        string s;
        cin >> s;

        string x0 = x;
        string x1 = x0 + x0;
        string x2 = x1 + x1;
        string x3 = x2 + x2;
        string x4 = x3 + x3;
        string x5 = x4 + x4;

        long long ans = -1;

        if (check(s,x0))
            ans = 0;
        else if (check(s,x1))
            ans = 1;
        else if (check(s,x2))
            ans = 2;
        else if (check(s,x3))
            ans = 3;
        else if (check(s,x4))
            ans = 4;
        else if (check(s,x5))
            ans = 5;

        cout << ans << endl;


    }
    return 0;
}