#include <iostream> #include <algorithm> using namespace std; long long S; const long long N = 1e5 + 10; long long arr[N]; int main() { cin >> S; for (int i = 0 ; i < S ; i++) { cin >> arr[i]; } sort(arr , arr + S);//sort排序 cout << arr[S - 1] - arr[0] << endl; return 0; }