I got "WA on test 3" nine times, when I stored P and Q as
real variables. But when I only substituted "real" by
"extended", I got AC.
  If you don't want to use such advanced methods, like
extended type, you can store P*100 and Q*100 as longint.
This method gets AC too.

Edited by author 23.09.2004 01:04

I agree. My program used real variables at first got WA again and again at test 3.
Try this test:
24.80 24.83
The right answer is 129
If you use real, the asnwer is 125
24.80 / 100 * 125 = 31.0000000000
24.83 / 100 * 125 = 31.0375000000
Good Luck!

<...>
well, you are rigth

Edited by author 23.04.2006 00:12

Edited by author 21.02.2007 21:33

I agree!  First, I always WA at text 14, but when I use "extended", I got AC.

You don't need to use any real types in your programs! The problem can be easily solved with integer types!