func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 1e6 + 5;   int a[N];   int32_t main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     int t, i, j, n, m, l, r;     cin >> n;     for (i = 0; i < n; i++) {       cin >> l;       a[l] = 1;     }     l = r = 0;     if (a[1] == 1) l++;     if (a[(int)1e6] == 1) l++;     for (i = 2, j = 1e6 - 1; i < j && l < n; i++, j--, r++) {       if (a[i] == 1) l++;       if (a[j] == 1) l++;     }     cout << r <<   n ;     return 0;   }   