题解

#include<bits/stdc++.h>
using namespace std;
int main() {
	int n;
	double sum = 0;
	cin >> n;
	int a[n + 1] = {};
	for(int i = 1 ; i <= n ; i++){
		cin >> a[i];
		sum += a[i];
	}
	sum /= n;
	for(int i = 1 ; i <= n ; i++)
		if(a[i] < sum)
			cout << a[i] << " ";
    return 0;
}