func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     string n;     cin >> n;     string m;     cin >> m;     sort(m.begin(), m.end());     int cn = 0;     int cm = 0;     int res = 0;     for (int i = 0; i < m.length(); i += cm) {       cm = count(m.begin(), m.end(), m[i]);       cn = count(n.begin(), n.end(), m[i]);       if (cn == 0) {         cout << -1;         return 0;       } else if (cn >= cm)         res += cm;       else         res += cn;     }     cout << res;     return 0;   }   