func_code_string: #include <bits/stdc++.h>   using namespace std;   using ll = int;   vector<pair<ll, string>> con[101010];   int main() {     ios_base::sync_with_stdio(false);     cout.tie(NULL);     int n, m;     cin >> n >> m;     int reg, sc;     string name;     while (n--) {       cin >> name;       cin >> reg;       cin >> sc;       con[reg].push_back(make_pair(sc, name));     }     for (int i = 1; i <= m; i++) {       sort(con[i].begin(), con[i].end());       reverse(con[i].begin(), con[i].end());       if ((int)con[i].size() > 2 && con[i][1].first == con[i][2].first) {         cout <<  ? n ;       } else {         cout << con[i][0].second <<     << con[i][1].second << endl;       }     }     return 0;   }   