[백준 자바] 1546 : 평균

 

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);
        int num = scan.nextInt();
        double max = 0.0;
        double score=0.0;
        int count2[] = new int[num];
        for (int i = 0; i < num; i++) {
            count2[i] = scan.nextInt();
            if (count2[i] > max) {
                max = count2[i];
            }
        }
        for (int i = 0; i < num; i++) {
           score += count2[i]/max*100;
        }
        System.out.println(score/num);
    }
}