로프_백준2217

문제

https://www.acmicpc.net/problem/2217

 

 

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import java.util.Arrays;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		int n = s.nextInt();
		int[] num = new int[n];
		int max = Integer.MIN_VALUE;
		
		for (int i = 0; i < num.length; i++) {
			num[i]=s.nextInt();
		}
		Arrays.sort(num);
		for (int i = 0; i < num.length; i++) {
			max = Math.max(max, num[i]*(n-i));
		}
		System.out.println(max);
	}
}