Problem:
Score : 100 points

Problem Statement

How many multiples of d are there among the integers between L and R (inclusive)?

Constraints

All values in input are integers.

1 \leq L \leq R \leq 100

1 \leq d \leq 100

Input

Input is given from Standard Input in the following format:

L R d

Output

Print the number of multiples of d among the integers between L and R (inclusive).

Sample Input 1

5 10 2

Sample Output 1

3

Among the integers between 5 and 10, there are three multiples of 2: 6, 8, and 10.

Sample Input 2

6 20 7

Sample Output 2

2

Among the integers between 6 and 20, there are two multiples of 7: 7 and 14.

Sample Input 3

1 100 1

Sample Output 3

100

Solution in C# (Mono-mcs 6.8.0.105) (judge verdict: Accepted)

using System;


class Program
{
    static void Main(string[] args)
    {

        
        string[] word = Console.ReadLine().Split(' ');
        int L = int.Parse(word[0]);
        int R = int.Parse(word[1]);
        int d = int.Parse(word[2]);
        
        int Count = 0;
        for(int i = L; L<=i && i <= R; i++)
        {
            if (i % d == 0)
            {
                       Count++;   
            }
        }
        Console.WriteLine(Count);


    }
}