func_code_string: #include <bits/stdc++.h>   using namespace std;   int gcd(int a, int b) { return b == 0 ? a : gcd(b, a % b); }   int main() {     int n;     cin >> n;     int a[100005];     for (int i = 0; i < n; i++) cin >> a[i];     sort(a, a + n);     int inter = a[1] - a[0];     for (int i = 2; i < n; i++) {       inter = gcd(inter, a[i] - a[i - 1]);     }     int cnt = 0;     for (int i = 1; i < n; i++) {       cnt += (a[i] - a[i - 1]) / inter - 1;     }     printf( %d n , cnt);   }   