题解 | #统计成绩#

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n=in.nextInt();
        double[] score=new double[n];
        double sum=0.0;
        double max=score[0];
        double min=100;
        for(int i=0;i<n;i++){
            score[i]=in.nextDouble();
        }
        for(int j=0;j<score.length;j++){
            if(score[j]>max){
                max=score[j];
            }
            if(score[j]<min){
                min=score[j];
            }
            sum+=score[j];
        }
        double aver;
        aver=(sum/n)*1.00;
        System.out.printf("%.2f %.2f %.2f",max,min,aver);    
    }  
}