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  1. using System;
  2.  
  3. public class Test
  4. {
  5. 	public static bool IsThereNine(int a)
  6. 	{
  7. 		while(a>0)
  8. 		{
  9. 			if(a%10==9)
  10. 				return true;
  11. 			a/=10;
  12. 		}
  13. 		return false;
  14. 	}
  15.  
  16. 	public static void Main()
  17. 	{
  18. 		int countDivisibleByThree=0;
  19. 		int countDivisibleByThreeWithNoNineWithin=0;
  20. 		for(int i=10000; i<=99999; ++i)
  21. 		{
  22. 			if(i%3==0)
  23. 			{
  24. 				++countDivisibleByThree;
  25. 				if(!IsThereNine(i))
  26. 				{
  27. 					++countDivisibleByThreeWithNoNineWithin;
  28. 				}
  29. 			}
  30. 		}
  31. 		Console.WriteLine("countDivisibleByThree="+countDivisibleByThree);
  32. 		Console.WriteLine("countDivisibleByThreeWithNoNineWithin="+countDivisibleByThreeWithNoNineWithin);
  33. 	}
  34. }
Success #stdin #stdout 0.01s 131648KB
comments (?)
stdin 
Standard input is empty
stdout 
countDivisibleByThree=30000
countDivisibleByThreeWithNoNineWithin=17496
https://ideone.com/xWkmbA
language:
C# (gmcs 5.20.1)
created:
8 years ago
visibility:
public

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