func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     set<string> s1, s2, s3;     s3.clear();     s1.clear();     s2.clear();     int n, m;     cin >> n >> m;     string str =   ;     for (int i = 0; i < n; i++) {       cin >> str;       s1.insert(str);     }     for (int i = 0; i < m; i++) {       cin >> str;       s2.insert(str);     }     set<string>::iterator it;     for (it = s1.begin(); it != s1.end(); it++) {       if (s2.find(*it) != s2.end()) {         s3.insert(*it);       }     }     int z = s3.size();     int x = s1.size() - z;     int y = s2.size() - z;     if (z % 2 != 0) {       if (x >= y) {         cout <<  YES n ;       } else {         cout <<  NO n ;       }     } else {       if (x - y >= 1)         cout <<  YES n ;       else {         cout <<  NO n ;       }     }     return 0;   }   