[백준] 1546번 : 평균 - Java(자바)

https://www.acmicpc.net/problem/1546

import java.util.Scanner;
public class Main {
    public static void main(String args[]) {
        Scanner s= new Scanner(System.in);
        int n=s.nextInt();
        int sum=0;
        int max=0;
        for(int i=0;i<n;i++){
            int a=s.nextInt();
            if(a>=max) max=a; 
            sum+=a;
        }
        System.out.format("%f",(double)sum*100/max/n);
    }
}