[Java11] 1546번 : 평균

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

정답

import java.util.Arrays;
import java.util.StringTokenizer;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main{
    public static void main(String[] args) throws IOException{
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        
        double arr[] = new double[Integer.parseInt(br.readLine())];
        
        StringTokenizer st = new StringTokenizer(br.readLine()," ");
        
        for(int i = 0;i<arr.length;i++){
            arr[i] = Double.parseDouble(st.nextToken());
        }
        double sum=0;
        Arrays.sort(arr);
        
        for(int i =0;i<arr.length;i++){
            sum +=((arr[i]/arr[arr.length -1])*100);
        }
        System.out.print(sum/arr.length);
    }
}