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  1. using System;
  2.  
  3. public class Test
  4. {
  5. 	const int N = 7;
  6.  
  7.         static void Main(string[] args)
  8.         {
  9.             int n = 0;
  10.             int[,] helix = new int[N, N];
  11.  
  12.             int x0 = 0;
  13.             int xn = N - 1;
  14.             int y0 = 0;
  15.             int yn = N - 1;
  16.  
  17.             while (n < N * N)
  18.             {
  19.                 for (int x = x0; x <= xn; x++)
  20.                 {
  21.                     helix[y0, x] = ++n;
  22.                 }
  23.  
  24.                 y0++;
  25.  
  26.                 for (int y = y0; y <= yn; y++)
  27.                 {
  28.                     helix[y, xn] = ++n;
  29.                 }
  30.  
  31.                 xn--;
  32.  
  33.                 for (int x = xn; x >= x0; x--)
  34.                 {
  35.                     helix[yn, x] = ++n;
  36.                 }
  37.  
  38.                 yn--;
  39.  
  40.                 for (int y = yn; y >= y0; y--)
  41.                 {
  42.                     helix[y, x0] = ++n;
  43.                 }
  44.  
  45.                 x0++;
  46.             }
  47.  
  48.             for (int x = 0; x < N; x++)
  49.             {
  50.                 for (int y = 0; y < N; y++)
  51.                 {
  52.                     Console.Write("{0}\t", helix[x, y]);
  53.                 }
  54.                 Console.WriteLine();
  55.             }
  56.  
  57.             Console.ReadKey();
  58.         }
  59. }
Success #stdin #stdout 0.02s 15812KB
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stdin
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Standard input is empty
stdout
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1	2	3	4	5	6	7	
24	25	26	27	28	29	8	
23	40	41	42	43	30	9	
22	39	48	49	44	31	10	
21	38	47	46	45	32	11	
20	37	36	35	34	33	12	
19	18	17	16	15	14	13
https://ideone.com/xFIuu3
language:
C# (gmcs 5.20.1)
created:
4 years ago
visibility:
public

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