func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);     long long a;     cin >> a;     vector<long long> x;     for (long long i = 0; i < a; i++) {       long long b;       cin >> b;       x.push_back(b);     }     bool done[101] = {false};     sort(x.begin(), x.end());     long long counter = 0;     long long ans = 0;     while (counter != a) {       long long num = 0;       for (long long i = 0; i < a; i++) {         if (x[i] >= num && !done[i]) {           num++;           counter++;           done[i] = true;         }       }       ans++;     }     cout << ans <<   n ;     return 0;   }   