Help me in solving SMOL problem

help
,
1

My issue

I have solved the problem and it is also running but as I submit the problem it is showing runtime error.

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 x=sc.nextInt();
		    int y=sc.nextInt();
		    int r= x%y;
		    System.out.println(r);
		}
	}
}

Learning course: Level up from 1* to 2*
Problem Link: CodeChef: Practical coding for everyone

2

@devansh51
make separate case for y==0 to avoid run time error.