func_code_string: #include <bits/stdc++.h>   using namespace std;   int a[1000000];   int ans[1000000];   int cnt;   int main() {     int n;     cin >> n;     for (int i = 1; i <= n; i++) {       cin >> a[i];       ans[a[i]]++;     }     for (int j = 1; j <= n; j++)       if (ans[j] == 0) cnt++;     cout << cnt << endl;     return 0;   }   