func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 1e9 + 1;   const long double pi = 3.1415926535897;   void solve() {     int n, ans(0);     cin >> n;     int a[n], b[5001] = {0};     for (int i = 0; i < n; i++) {       cin >> a[i];       if (b[a[i]] == 0) b[a[i]] = 1;     }     for (int i = 1; i < n + 1; i++)       if (!b[i]) ans++;     cout << ans;   }   signed main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     int t = 1;     while (t--) {       solve();       cout <<   n ;     }     return 0;   }   