func_code_string: #include <bits/stdc++.h>   using namespace std;   const int COUNT = 600;   int main() {     ios::sync_with_stdio(false);     cin.tie(nullptr);     int N;     cin >> N;     string S;     cin >> S;     vector<int> on_count(COUNT, 0);     for (int i = 0; i < N; i++) {       int a, b;       cin >> a >> b;       int goal = b;       int status = S[i] -  0 ;       for (int t = 0; t < COUNT; t++) {         if (t == goal) {           status = 1 - status;           goal += a;         }         on_count[t] += status;       }     }     cout << *max_element(on_count.begin(), on_count.end()) <<   n ;   }   