func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long maxn = 200005;   long long n, has;   long long num[maxn], rk[maxn];   long long a[maxn];   signed main() {     long long k, j, i;     scanf( %lld , &n);     for (k = 1; k <= n; k++) scanf( %lld , &a[k]);     rk[0] = 1;     num[1] = 0;     has = 1;     for (k = 1; k <= n; k++) {       if (rk[a[k]])         rk[k] = rk[a[k]], rk[a[k]] = 0, num[rk[k]] = k;       else {         num[++has] = k, rk[k] = has;       }     }     cout << has << endl;     return 0;   }   