// // Created by CCG on 25-7-11. // #include<iostream> #include<cmath> using namespace std; int main() { int a[1001] = {}, min = INT_MAX; int n; cin >> n; for (int i = 1; i <= n; i++) { cin >> a[i]; } for (int i = 1; i <= n; i++) { for (int j = i + 1; j <= n; j++) { int s = abs(a[i] - a[j]); if (s < min) { min = s; } } } cout << min; return 0; }