func_code_string: #include <bits/stdc++.h>   using namespace std;   long long arr[200001];   long long gcd(long long a, long long b) {     if (b == 0) return a;     return gcd(b, a % b);   }   int main() {     int n;     cin >> n;     for (int i = 0; i < n; ++i) {       cin >> arr[i];     }     sort(arr, arr + n, greater<int>());     long long gcf = 0, total = 0;     for (int i = 0; i < n; ++i) {       gcf = gcd(arr[0] - arr[i], gcf);       total += (arr[0] - arr[i]);     }     cout << total / gcf <<     << gcf << endl;   }   