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C# Print Diagonal matrix
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| using System; | |
| namespace ConsoleApp1 | |
| { | |
| class Program | |
| { | |
| public static void Main(string[] args) | |
| { | |
| var matrix = new int[,] { | |
| { 1, 2, 3, 4,5}, | |
| { 6, 7, 8, 9, 10}, | |
| { 11, 12, 13, 14, 15}, | |
| { 16, 17, 18, 19, 20} | |
| }; | |
| var rows = matrix.GetLength(0); | |
| var columns = matrix.GetLength(1); | |
| var rowPointer = 0; | |
| Console.WriteLine("First half of the diagonal"); | |
| //start from first row to last row | |
| while (rowPointer < rows) | |
| { | |
| var i = rowPointer; | |
| var j = 0; | |
| //rows to column | |
| while (i >= 0) | |
| { | |
| Console.Write(matrix[i, j]); | |
| i--; | |
| j++; | |
| } | |
| rowPointer++; | |
| Console.WriteLine(); | |
| } | |
| var columnPointer = 1; | |
| Console.WriteLine("Second half of the diagonal"); | |
| // number 1 column to all column | |
| while (columnPointer < columns) | |
| { | |
| var i = rows - 1; | |
| var j = columnPointer; | |
| //til last column and last row | |
| while (j <= columns - 1) | |
| { | |
| Console.Write(matrix[i, j]); | |
| i--; | |
| j++; | |
| } | |
| columnPointer++; | |
| Console.WriteLine(); | |
| } | |
| Console.Read(); | |
| } | |
| } | |
| } |
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