Help me in solving ZCO14003 problem

help
,
1

My issue

i didn’t understand the logic of the problem plz help

My code

/* package codechef; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Codechef
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner sc=new Scanner(System.in);
		int t=sc.nextInt();
		while(t-->0){
		   int n=sc.nextInt();
		   int k=sc.nextInt();
		   int sum=0;
		   int arr[]=new int[n];
		   HashMap<Integer,Integer> al=new HashMap<>();
		   for(int i=0;i<n;i++){
		       arr[i]=sc.nextInt();
		   }
		  for(int i=0;i<n;i++){
		      sum+=arr[i];
		      for(int j=i+1;j<k;j++){
		     sum+=arr[j];
		      }
		       al.put(i,sum);
		       sum=0;
		  } 
		  System.out.println(al);
		}
		 t--;
	}
}

Problem Link: CodeChef: Practical coding for everyone

3

@fuhadh90
The logic is quite simple
just sort the array and return the max of (arr[i]*(n-i)) by looping through array.

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