Very long number.

[ZoltanOnody]

Hi, I have this code

  unsigned long long number;
  cin >> number;

  cout << 192 + (number*250) << endl;

where number is (1  < number < 10¹⁸).

When I enter 10¹⁸ the result is not correct.

How can I solve this problem?

[coder777]

well, 10¹⁸*250 goes out of range of unsigned long long.
use double instead