Help me in solving NUM239 problem

My issue

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
	{
		// your code goes here
		Scanner sc=new Scanner(System.in);
		int t=sc.nextInt();
		for(int i=0;i<t;i++){
		    int[] a=new int[t];
		    for(int j=0;j<t;j++){
		        a[j]=sc.nextInt();
		    }
		    
		    
		}
	}
}

Problem Link: NUM239 Problem - CodeChef