HackerEarth Count Divisors problem solution

import java.io.*;
import java.util.*;
class example_2
{
    static Scanner sc=new Scanner(System.in);

    public static void main(String args[]) throws Exception
    {
        int l=sc.nextInt(),r=sc.nextInt(),k=sc.nextInt();
        System.out.println((r/k)-((l-1)/k));
    }
}