func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     while (cin >> n) {       vector<int> a(n);       for (int i = 0; i < n; scanf( %d , &a[i++]))         ;       sort(a.begin(), a.end());       bool ok = 0;       for (int i = 0; i < n; i++) {         if (a[i] != i + 1) {           cout << i + 1 << endl;           ok = 1;           break;         }       }       if (!ok) cout << n + 1 << endl;     }     return 0;   }   