백준 1546 / 자바

www.acmicpc.net/problem/1546

1546번: 평균

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


public class Main {
   
	public static void main(String[] args) throws IOException {
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		StringTokenizer st;
		
		int N = Integer.parseInt(br.readLine());
		st = new StringTokenizer(br.readLine());
		float Score[] = new float[N]; 
		float sum=0, m;
		
		for(int i=0; i<N; i++) {
			Score[i] = Float.valueOf(st.nextToken());
		}
		
		Arrays.sort(Score);
		m = Score[N-1];

		for(int i=0; i<N;i++) {
			Score[i] = Score[i]/m*100;
			sum += Score[i];
		}

		System.out.println(sum/N);

}
}