Traversing a two Dimensional Array

Question

Hi Need code to traverse through a two dimensional array as follows: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Required result: 1234510152019181716116789141312.

Roy S · Answer

This was a challenge... But I got it: using System; namespace reverse { class Program { static void Main(string[] args) { int[] matrix = new int[] { { 1 2 3 4 5 } { 6 7 8 9 10 } { 11 12 13 14 15 } { 16 17 18 19 20 } }; int rows = matrix.GetLength(0); int cols = matrix.GetLength(1); int r = 0 c = 0; if (rows foreach (int i in matrix) Console.WriteLine(i); else { for (int i = 0; i { for (c = i; c Console.WriteLine(matrix[i c]); for (r = i; r Console.WriteLine(matrix[r c]); for (; c > i; c--) Console.WriteLine(matrix[r c]); for (; r > i; r--) Console.WriteLine(matrix[r c]); } if (rows % 2 != 0) for (; 2 * c Console.WriteLine(matrix[r c]); } Console.ReadLine(); } } } What is done is that one turn around is being repeated a couple of times (depending of the number of rows) and then if the number of rows is odd (there's still a possibility that there's a number in the middle) it displays the middle row. EDIT: It doesn't work for an array with only one row or column... fixed