Help me in solving RUNCOMPARE problem

help
,
1

My issue

Index 3 out of bound for length 3

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();
		int n = sc.nextInt();
		int a[]=new int[n];
		 int b[]=new int[n];
		int count = 0;
		for(int i=0;i<=t;i++){
		    for(int j =0;j<=n;j++){
		        
		       for( j=0;j<n;j++){
		           a[j]=sc.nextInt();
		       }
		       for( j=0;j<n;j++){
		          b[j]=sc.nextInt();
		       }
		       
		       if(a[j]<=(2*b[j])||b[j]<=(2*a[j])){
		            count++;
		       }
		        
		    }
		}
		System.out.println(count);
		
	}
}

Learning course: Arrays using Java
Problem Link: CodeChef: Practical coding for everyone