BEAKJOON JAVA ALGORITHM #5054(주차의신)

https://www.acmicpc.net/problem/5054

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Arrays; import java.util.StringTokenizer; public class a5054 { public static void main(String[] args) throws NumberFormatException, IOException { BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); int num=Integer.parseInt(br.readLine()); for(int i=0;i<num;i++){ int sum=0; int s=Integer.parseInt(br.readLine()); StringTokenizer token = new StringTokenizer(br.readLine()); int[] xi=new int[s]; for(int j=0;j<s;j++){ xi[j]=Integer.parseInt(token.nextToken()); } Arrays.sort(xi); for(int k=0;k<s-1;k++){ sum+=(xi[k+1]-xi[k]); } sum*=2; System.out.println(sum); } } }