using System;
namespace DisplayXWithNestedLoops
{
    public class Program
    {
        public static void Main(string[] args)
        {
            int nConsoleWidth = 40;
            // iterate through the rows of the ôboxö
            for (int nRowNum = 0; nRowNum < nConsoleWidth; nRowNum += 2)
            {
                // now iterate through the columns
                for (int nColumnNum = 0; nColumnNum < nConsoleWidth; nColumnNum++)
                {
                    // the default character is a space
                    char c = ' ';
                    // if the column number and row number are the same . . .
                    if (nColumnNum == nRowNum)
                    {
                        // . . .replace the space with a backslash
                        c = '\\';
                    }
                    // if the column is on the opposite side of the row . . .
                    int nMirrorColumn = nConsoleWidth - nRowNum;
                    if (nColumnNum == nMirrorColumn)
                    {
                        // . . .replace the space with a slash
                        c = '/';
                    }
                    // output whatever character at the current
                    // row and column
                    Console.Write(c);
                }
                Console.WriteLine();
            }
            // wait for user to acknowledge the results
            Console.WriteLine("Press Enter to terminate...");
            Console.Read();
        }
    }
}

using System;
using System.Collections.Generic;
using System.Text;

namespace ConsoleApplication5
{
    class Program
    {
        static void Main(string[] args)
        {
            int dim = 20;

            for (int i = 0; i < dim; i += 2)
            {
                for (int j = 0; j < dim; j++)
                {
                    char c = ' ';
                    if (i == j)
                    { c = '\\'; }
                    //int n = dim - i;
                    if (j == dim - i)
                    { c = '/'; }
                    Console.Write(c);
                }
                Console.WriteLine();


            }
        }
    }
}