func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, max = 0;     cin >> n;     int arr[n];     long long ans = 0;     for (int i = 0; i < n; i++) {       cin >> arr[i];       if (arr[i] > max) {         max = arr[i];       }     }     for (int i = 0; i < n; i++) {       ans += max - arr[i];     }     cout << ans << endl;     return 0;   }   