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  1. using System;
  2.  
  3. public class Test
  4. {
  5. 	public static void Main()
  6. 	{
  7. 		bool fine = true;
  8. 		for (int i = -5 ; i != 6 ; i++) {
  9. 			for (int j = -5 ; j != 6 ; j++) {
  10. 				ulong c = Combine(i, j);
  11. 				int iBack, jBack;
  12. 				Decombine(c, out iBack, out jBack);
  13. 				if (i != iBack || j != jBack) {
  14. 					fine = false;
  15. 					Console.WriteLine("{0}/{1} {2}/{3}", i, iBack, j, jBack);
  16. 				}
  17. 			}
  18. 		}
  19. 		if (fine) {
  20. 			Console.WriteLine("OK");
  21. 		}
  22. 	}
  23. 	private static ulong Combine(int a, int b) {
  24. 		uint ua = (uint)a;
  25. 		ulong ub = (uint)b;
  26. 		return ub <<32 | ua;
  27. 	}
  28. 	private static void Decombine(ulong c, out int a, out int b) {
  29. 		a = (int)(c & 0xFFFFFFFFUL);
  30. 		b = (int)(c >> 32);
  31. 	}
  32. }
Success #stdin #stdout 0.02s 14564KB
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stdin
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Standard input is empty
stdout
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OK
https://ideone.com/XVIqe5
language:
C# (gmcs 5.20.1)
created:
6 years ago
visibility:
public

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