Holiday_Of_Equality.cpp

#include <iostream>
using namespace std;
#define sf scanf
#define pf printf
int main (void)
{
    int n,i,max;
    while (cin >> n)
    {
        int arr[n],sum = 0;
        for (i=0; i<n; i++)
            cin >> arr[i];
        sort (arr,arr+i);
        max = arr[n-1];
        for (i=0; i<n-1; i++)
            sum += abs (max - arr[i]);
        cout << sum << endl;
    }
    return 0;
}