I tested my code with many test cases and it always worked (even with N=1 - answer is 0).
But when I submit the solution I always get WA on first test case. And I don't know why.

Can I get the first test case so I can find out why my code doesn't work?

I used Dev-C++ environment and C language (not C++).

Edited by author 05.04.2009 16:46

Edited by author 05.04.2009 16:48