namespace ConsoleApp1;

using System.Text;

public class Task21
{
    public void Run()
    {
        Console.InputEncoding = Encoding.Unicode;
        Console.OutputEncoding = Encoding.Unicode;

        int randomRangeIncludedLowBound = 1;
        int randomRangeExcludedHighBound = 10;
        Random random = new Random();

        int columnsCount = 10;
        int rowsCount = 10;
        int[,] matrix = new int[rowsCount, columnsCount];

        int maxElementChangedValue = 0;

        bool canExit = false;

        while ( canExit == false )
        {
            Console.Clear();

            int maxElement = int.MinValue;
            string displayedMatrix = string.Empty;

            for ( int i = 0; i < rowsCount; i++ )
            {
                for ( int j = 0; j < columnsCount; j++ )
                {
                    matrix[i, j] = random.Next( randomRangeIncludedLowBound, randomRangeExcludedHighBound );
                    displayedMatrix = $"{displayedMatrix}{matrix[i, j]} ";

                    if ( matrix[i, j] > maxElement )
                        maxElement = matrix[i, j];
                }

                displayedMatrix = $"{displayedMatrix}\n";
            }

            displayedMatrix = $"{displayedMatrix}\n";

            Console.WriteLine("Source matrix:");
            Console.WriteLine( displayedMatrix );


            displayedMatrix = string.Empty;

            for ( int i = 0; i < rowsCount; i++ )
            {
                for ( int j = 0; j < columnsCount; j++ )
                {
                    if ( matrix[i, j] == maxElement )
                        matrix[i, j] = maxElementChangedValue;

                    displayedMatrix = $"{displayedMatrix}{matrix[i, j]} ";
                }

                displayedMatrix = $"{displayedMatrix}\n";
            }

            displayedMatrix = $"{displayedMatrix}\n";

            Console.WriteLine( $"Matrix after swap of max element ({maxElement}) to {maxElementChangedValue}:" );
            Console.WriteLine( displayedMatrix );


            string properlyExitAnswer = "n";
            Console.WriteLine( $"Continue? Enter \'{properlyExitAnswer}\' for exit" );
            string continueAnswer = Console.ReadLine();

            canExit = string.Equals( continueAnswer, properlyExitAnswer );
        }
    }
}