using System;

​

namespace bitmap_fill

{

    public class Program

    {

        static void Main(string[] args)

        {

            int[,] original = new int[,] {

                {0,0,0,0,0,0,0,0,0,0},

                {0,0,2,2,2,2,2,0,0,0},

                {0,0,2,0,0,0,2,0,0,0},

                {0,0,2,0,0,0,2,0,2,0},

                {0,0,2,0,0,0,2,0,2,0},

                {0,0,2,0,0,0,2,0,2,0},

                {0,0,2,2,2,2,2,2,2,2},

                {0,0,0,0,0,0,0,0,0,0},

                {0,0,0,0,0,0,0,0,0,0},

                {0,0,0,0,0,0,0,0,0,0},

            };

​

            int[,] expected = new int[,] {

                {9,9,9,9,9,9,9,9,9,9},

                {9,9,2,2,2,2,2,9,9,9},

                {9,9,2,0,0,0,2,9,9,9},

                {9,9,2,0,0,0,2,9,2,9},

                {9,9,2,0,0,0,2,9,2,9},

                {9,9,2,0,0,0,2,9,2,9},

                {9,9,2,2,2,2,2,2,2,2},

                {9,9,9,9,9,9,9,9,9,9},

                {9,9,9,9,9,9,9,9,9,9},

                {9,9,9,9,9,9,9,9,9,9},

            };

​

            int x1 = 0;

            int y1 = 0;

            int fillValue = 9;

​

            //Do fill based on input

            var result = DoFill(original, x1, y1, fillValue);

            PrintBitmap(expected);

            PrintBitmap(result);

            Console.WriteLine(IsBitMapEqual(result, expected));

        }

​

        public static int [,] DoFill(int[,] original, int x, int y, int fillValue)

        {

            int [,] workingCopy = original;

​

            // code 

​

            return workingCopy;

        }

​

​

        // helper mathods -- do not modify

        static bool IsBitMapEqual(int[,] bitmap1, int[,] bitmap2)

        {

            for (int y = 0; y < bitmap1.GetLength(1); y++)

            {

                for (int x = 0; x < bitmap1.GetLength(0); x++)

                {

                    if (bitmap1[x, y] != bitmap2[x, y]) return false;

                }

            }

            return true;

        }

​

        static void PrintBitmap(int[,] bitmap)

        {

            for (int y = 0; y < bitmap.GetLength(1); y++)

            {

                for (int x = 0; x < bitmap.GetLength(0); x++)

                {

                    Console.Write($"{bitmap[x, y]},");

                }

                Console.Write("\n");

            }

            Console.Write("\n");

        }

​

        static void PrintPosition(int[,] bitmap, int posX, int posY)

        {

            for (int y = 0; y < bitmap.GetLength(1); y++)

            {

                for (int x = 0; x < bitmap.GetLength(0); x++)

                {

                    if( x == posX && y == posY)

                        Console.Write($"X");

                    else

                        Console.Write($"0");

                }

                Console.Write("\n");

            }

            Console.Write("\n");

        }

    }

}

​