[codeforce] A. Theatre Square

SUBMITTED BY: Guest

DATE: March 5, 2014, 2:47 p.m.

FORMAT: C++

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  1. //Haha TTpro
  2. //A. Theatre Square
  3. //http://codeforces.com/problemset/problem/1/A
  5. #include <iostream>
  6. using namespace std;
  7. int main()
  8. {
  9. long long int m, n, a;
  10. cin >> n >> m >> a;
  11. long long int ngang, doc;
  12. ngang = m / a;
  13. if (m%a != 0)
  14. {
  15. ngang++;
  16. }
  18. doc = n / a;
  20. if (n%a != 0)
  21. {
  22. doc++;
  23. }
  25. long long int tong;
  26. tong = ngang*doc;
  27. cout << tong;
  28. return 0;
  30. }
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