Help me in solving SEVENRINGS problem

My issue

i have written the code in this problem according to constraints but still why it is giving me run time error
Scanner sc = new Scanner(System.in);
int t = sc.nextInt();
while(t–>0){
float n = sc.nextFloat();
float x = sc.nextFloat();
if((nx)>=10000 &&(nx)<=99999)
System.out.println(“YES”);
else
System.out.println(“NO”);

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();
		while(t-->0){
		    float n = sc.nextFloat();
		    float x = sc.nextFloat();
		    if((n*x)>=10000 &&(n*x)<=99999)
		        System.out.println("YES");
		    else
		        System.out.println("NO");
		}
	}
}

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

@anon8849772
Your code is working absolutely fine.