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  1. using System;
  2.  
  3. public class Test
  4. {
  5. 	public static void Main()
  6. 	{
  7. 	int n = 5;
  8. int[,] matrix = new int[n, n];
  9. int curr = 1;
  10. for (int diff = 1 - n; diff <= n - 1; diff++)
  11. {
  12.     for (int i = 0; i < n; i++)
  13.     {
  14.         int j = i - diff;
  15.  
  16.         if (j < 0 || j >= n)
  17.             continue;
  18.         if (((diff+n+1)&1) > 0)    
  19.           matrix[i, n-1-j] = curr++;
  20.         else
  21.           matrix[n-1-j, i] = curr++;
  22.     }
  23. }
  24. for (int j = 0; j < n; j++)
  25. {
  26.     for (int i = 0; i < n; i++)
  27.         Console.Write(matrix[j, i] + "  " );
  28.     Console.WriteLine();
  29. }
  30. 	}
  31. }
Success #stdin #stdout 0.02s 15980KB
comments (?)
stdin 
Standard input is empty
stdout 
1  2  6  7  15  
3  5  8  14  16  
4  9  13  17  22  
10  12  18  21  23  
11  19  20  24  25
https://ideone.com/VZt0MM
language:
C# (gmcs 5.20.1)
created:
5 years ago
visibility:
public

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