08.01.Teleport points авторско

using System;
using System.Collections.Generic;
class TeleportPoints
{
    static void Main()
    {
        string[] pointA = Console.ReadLine().Split(' ');
        string[] pointB = Console.ReadLine().Split(' ');
        string[] pointC = Console.ReadLine().Split(' ');
        string[] pointD = Console.ReadLine().Split(' ');

        double radius = double.Parse(Console.ReadLine());
        double step = double.Parse(Console.ReadLine());

        double aX = double.Parse(pointA[0]);
        double aY = double.Parse(pointA[1]);
        double bX = double.Parse(pointB[0]);
        double bY = double.Parse(pointB[1]);
        double cX = double.Parse(pointC[0]);
        double cY = double.Parse(pointC[1]);
        double dX = double.Parse(pointD[0]);
        double dY = double.Parse(pointD[1]);

        int pointCounter = 0;

        //Check the right side
        for (double x = 0; x <= radius; x += step)
        {
            //Upper quadrant
            for (double y = 0; y <= radius; y += step)
            {
                if ((Math.Pow(x - 0, 2) + Math.Pow(y - 0, 2)) <= Math.Pow(radius, 2))
                {
                    if ((x > aX && x < bX) && (y < cY && y > bY))
                    {
                        pointCounter++;
                    }
                }
            }

            //Lower quadrant
            for (double y = -step; y >= -radius; y -= step)
            {
                if ((Math.Pow(x - 0, 2) + Math.Pow(y - 0, 2)) <= Math.Pow(radius, 2))
                {
                    if ((x > aX && x < bX) && (y < cY && y > bY))
                    {
                        pointCounter++;
                    }
                }
            }

        }

        //Check the left side
        for (double x = -step; x >= -radius; x -= step)
        {
            //Upper quadrant
            for (double y = 0; y <= radius; y += step)
            {
                if ((Math.Pow(x - 0, 2) + Math.Pow(y - 0, 2)) <= Math.Pow(radius, 2))
                {
                    if ((x > aX && x < bX) && (y < cY && y > bY))
                    {
                        pointCounter++;
                    }
                }
            }

            //Lower quadrant
            for (double y = -step; y >= -radius; y -= step)
            {
                if ((Math.Pow(x - 0, 2) + Math.Pow(y - 0, 2)) <= Math.Pow(radius, 2))
                {
                    if ((x > aX && x < bX) && (y < cY && y > bY))
                    {
                        pointCounter++;
                    }
                }
            }
        }

        Console.WriteLine(pointCounter);
    }
}