Help me in solving FCTRL2 problem

help
,
1

My issue

explain this code

My code

// We have populated the solutions for the 10 easiest problems for your support.
// Click on the SUBMIT button to make a submission to this problem.

import java.util.*;
import java.lang.*;
import java.math.*;

/* 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();
                BigInteger fact = new BigInteger("1");
                for(int i = 2; i <= n; i++)
                fact = fact.multiply(BigInteger.valueOf(i));
                System.out.println(fact);
            }
	    
	}
}

Problem Link: FCTRL2 Problem - CodeChef

2

@pd2004priya
its a simple way for finding factorial by looping through the array.
We are type casting it as BigInteger because the answer can very large and can’t be fit inside int data type.