C++ 代码

#include <iostream>
#include <algorithm>

using namespace std;

int n;
const int N = 1e4 + 10;
int a[N],res,sum,ave;

int main(){
    cin >> n;

    for(int i = 1;i <= n;i ++){
        cin >> a[i];
        sum = sum + a[i];
    }

    ave =  sum / n;

    for(int i = 1;i <= n;i ++){
        if(a[i] > ave)res = res + a[i] - ave;
    }

    cout << res;

    return 0;
}