2. Drawing_Isosceles_Triangle

/* Write a program that prints an isosceles triangle of 9 copyright symbols ©.
 * Note that the © symbol may be displayed incorrectly at the console so you may need
 * to change the console character encoding to UTF-8 and assign a Unicode-friendly font
 * in the console. Note also, that under old versions of Windows the © symbol
 * may still be displayed incorrectly, regardless of how much effort you put to fix it. */

namespace _8.IsoscelesTriangle
{
    using System;
    using System.Text;

    public class DrawIsoscelesTriangle
    {
        public static void Main(string[] args)
        {
            Console.OutputEncoding = Encoding.UTF8;
            char copySymb = '\u00A9';
            int countRows = 4;
            Console.WriteLine("The Isosceles Triangle with 9 copyright symbols '{0}' is:", copySymb);
            Console.WriteLine();

            // Print the first top row of Triangle:
            string spaceBeforeSymbol = new string(' ', countRows - 1);
            Console.WriteLine(spaceBeforeSymbol + copySymb);

            // Print next rows below:
            for (int row = 1; row < countRows - 1; row++)
            {
                PrintNextRowOfTriangle(countRows, row, copySymb);
            }

            // Print the last bottom row of Triangle:
            for (int i = 0; i < countRows; i++)
            {
                Console.Write(copySymb + " ");
            }

            Console.WriteLine();
            Console.WriteLine();
        }

        private static void PrintNextRowOfTriangle(int countRows, int row, char symbol)
        {
            // Calculate lenght of whole current row:
            int lenght = countRows + row;

            // Calculate whitespace before First copyright symbol:
            int countSpacesBeforeFirstSymbol = (countRows - 1) - row;
            string spaceBeforeFirstSymbol = new string(' ', countSpacesBeforeFirstSymbol);

            // Calculate whitespace between left and right copyright symbols on the row:
            int countMiddleSpaces = (lenght - countSpacesBeforeFirstSymbol) - 2;
            string middleSpace = new string(' ', countMiddleSpaces);

            // Print whole current row:
            Console.WriteLine(spaceBeforeFirstSymbol + symbol + middleSpace + symbol);
        }
    }
}