many people get WA at #9
Could anybody give me #9 testcase or give me an AC program
caocao9926@163.com

I use Gauss Maybe I get wrong because of eps
I've passed it at Pku ,but I can't AC here.
Thanks

The trouble really can be in preсision.
If you use simple Gauss with type "long double" you'll always get WA.
Do calculations in long integer numbers or modulo big prime number.
If you want, i can send you some my solutions, WA 9, WA 17, AC.

Yeah I want your program
Please :
caocao9926@163.com
I've tried to module big prime
but it doesn't work
and how to do calculations in long integer?

Thanks

Edited by author 05.10.2008 09:45