BEAKJOON JAVA ALGORITHM #11399(ATM)

https://www.acmicpc.net/problem/11399

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Arrays; import java.util.StringTokenizer; public class a11399 { public static void main(String[] args) throws NumberFormatException, IOException { BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); int num=Integer.parseInt(br.readLine()); StringTokenizer token = new StringTokenizer(br.readLine()); int []a=new int[num]; int sum=0; for(int i=0;i<num;i++){ a[i]=Integer.parseInt(token.nextToken()); } Arrays.sort(a); for(int i=0;i<num;i++){ for(int j=0;j<=i;j++){ sum+=a[j]; } } System.out.println(sum); } }