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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. bool valid(long long x)
  5. {
  6. 	while (x)
  7. 	{
  8. 		int d = x % 10;
  9. 		if (d == 4)
  10. 			return false;
  11. 		x /= 10;
  12. 	}
  13. 	return true;
  14. }
  15.  
  16. int main()
  17. {
  18. 	srand(time(NULL));
  19. 	int tests;
  20. 	cin >> tests;
  21. 	for (int t = 1; t <= tests; t++)
  22. 	{
  23. 		long long N, A, B;
  24. 		cin >> N;
  25. 		long long _min = 1, _max = N - 1;
  26. 		while (true)
  27. 		{
  28. 			A = (_min + (rand() % (long long)(_max - _min + 1)));
  29. 			B = N - A;
  30. 			if (valid(A) && valid(B))
  31. 			{
  32. 				cout << "Case #" << t << ": " << A << " " << B << endl;
  33. 				break;
  34. 			}
  35. 		}
  36. 	}
  37. }
  38.  
Time limit exceeded #stdin #stdout 5s 15240KB
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https://ideone.com/LUFyhI
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
secret

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