func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int qnt, time, felicity, time_to_eat, best = -999999999;     cin >> qnt >> time;     for (int i = 0; i < qnt; i++) {       cin >> felicity >> time_to_eat;       if (time_to_eat <= time && felicity > best) {         best = felicity;       } else if (time_to_eat > time) {         int aux = felicity - (time_to_eat - time);         if (aux > best) {           best = felicity - (time_to_eat - time);         }       }     }     cout << best << endl;     return 0;   }   