After my wrong AC tests were added
(Thanks to Fyodor Menshikov).
Many authors lost AC.The problem was with division to negative divisors.
(Example)
1/2
/
-1/3
Good luck!

I have WA #30, but on your test and on same tests my solution give right answers. Can be there others tricks?

Try these tests:

INPUT:
30000 29999/30000
*
30000 29999/30000

OUTPUT:
900059998 899940001/900000000

INPUT:
30000 29997/30000
/
1/29999

OUTPUT:
899999996 1/10000

Edited by author 05.05.2009 04:36

Thanks! You helped me a lot.

Yes, I see. But I achieved the target - helped to the guys to find their bugs and get AC =)

My program passed these tests, but it still has WA#29. (Before rejudge it has AC status). Does anybody have other hints or tests?

OUCH! But on test

30000 29999/30000
*
-30000 29999/30000

my prog outputs -20745377/900000000 instead of

-900059998 899940001/900000000

hmm... thank you for good tests, Vedernikoff Sergey :)

Now it's OK, just stupid mistake with labs function I saw with a help of this test. I don't know why it works wrong with long long numbers. I'll not use it anymore!

Edited by author 06.03.2010 01:05

Edited by author 06.03.2010 01:06

thanks, first i WA#26 but when i see your test got AC,
thanks, i dont forgot your help in all my life ;)
sorry for my poor english.