for Codility CountDiv

CountDiv.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CountDiv
{
    class Program
    {
        static void Main(string[] args)
        {
            int A = 6, B = 11, K = 2;
            Solution sol = new Solution();
            int result = sol.solution(A, B, K);
            Console.WriteLine(result);
        }
    }

    class Solution
    {
        public int solution(int a, int b, int k)
        {
            int result = 0;
            if (a % k == 0)
            {
                result += 1;
            }

            int distance = b - a;
            result += distance / k;

            return result;
        }
    }
}