func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int N;     cin >> N;     int max = INT_MIN, min = INT_MAX;     for (int i = 0; i < N; ++i) {       int x;       cin >> x;       if (x > max) max = x;       if (x < min) min = x;     }     cout << max - min + 1 - N << endl;   }   