[백준_JAVA] 1546 평균

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		double[] score = new double[N];
		double M = 0.0;
		double cScore = 0.0;
		double result = 0.0;
		
		for(int i = 0; i < N; i++) {
			score[i] = sc.nextInt();
			if(score[i] > M)
				M = score[i];
		}
		for(int i = 0; i < N; i++) {
			cScore = (score[i]/M)*100;
			result += cScore;
		}
		System.out.println(result/N);
		sc.close();
	}
}