spoj BCFACT v1.01

SUBMITTED BY: Guest

DATE: Feb. 16, 2014, 9:04 a.m.

FORMAT: C++

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  1. //Haha TTpro
  2. //BCFACT
  3. //http://www.spoj.com/PTIT/problems/BCFACT/
  6. #include <iostream>
  8. using namespace std;
  9. long long int giaithua(int a);
  10. int main()
  11. {
  12. int a;
  13. long long int s;
  14. while (true)
  15. {
  16. cin >>a;
  17. if (a==0) break;
  18. s= giaithua(a);
  19. cout<<s<<endl;
  20. }
  21. }
  24. long long int giaithua(int a)
  25. {
  26. long long int s=1;
  27. int i;
  28. for (i=1;i<=a;i++)
  29. {
  30. s=s*i;
  31. }
  32. return s;
  33. }
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