using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

​

namespace ConsoleApp5

{

    internal class Program

    {

        static void Main(string[] args)

        {

            int[] p = { 2, 1, 0, 2, 1, 1, 0, 1, 2, 1, 1, 0, 0, 2,

                1 };

            Console.WriteLine(ORANGES(3, 5, p));

            Console.ReadLine();

        }

​

        public static int ORANGES(int input1, int input2, int[] input3)

        {

            int[,] matrix = new int[input1, input2];

            int indexCrate = 0;

            bool existsFresh = false;

            for (int i = 0; i < input1; i++)//row

            {

                for (int j = 0; j < input2; j++) //column   

                {

                    matrix[i, j] = input3[indexCrate];

                    if(matrix[i, j] == 1)

                    {

                        existsFresh = true;

                    }

                    indexCrate++;

                }

            }

​

​

            //day1

            int day = 0;

            do

            {

                day++;

                existsFresh = false;

                for (int i = 0; i < input1; i++)//row

                {

                    for (int j = 0; j < input2; j++) //column   

                    {

                        if (matrix[i, j] == 1)

                        {

                            existsFresh = true;

                            bool anyRotten = false;

                            if ((i-1) >= 0 && matrix[i - 1, j] == 2)

                            {

                                anyRotten = true;

                            }

                            if ((i + 1) < input1 && matrix[i + 1, j] == 2)

                            {

                                anyRotten = true;

                            }

                            if ((j-1)>=0 && matrix[i, j - 1] == 2)

                            {

                                anyRotten = true;

                            }

                            if ((j+1) < input2 && matrix[i, j + 1] == 2)

                            {

                                anyRotten = true;

                            }

                            if (anyRotten)

                            {

                                matrix[i, j] = 2;

                            }

                        }

​

                    }

                }

​

            } while (existsFresh);

​

            return day;

​

​

        }

​

​

    }

}

​