Discussion @ 1550. Dean's Pyramid 3 @ Timus Online Judge

HELP

Posted by Caesar_KZ 21 Apr 2007 13:59

The task is to find a volume of Piramid - volume of cylindr ? CAn you tell me the FORMULA?

Re: HELP

Posted by Kollekcioner2007 21 Jun 2007 02:29

It is very easy)))
double res = sqr(w)*h/3-h*pi*sqr(r)*(w-2*fabs((((y >= x && y >= -x) || (y < x && y < -x)) ? y : x)))/w;

Re: HELP

Posted by Neizvestnii 21 Jun 2007 14:54

What procedure fabs does?

Re: HELP

Posted by Paul Diac 7 Sep 2007 22:38

abs (absolute value) for float.

Re: HELP

Posted by Paul Diac 7 Sep 2007 23:27

How can you solve it so easy?

Re: HELP

Posted by ArcSin 16 Oct 2007 21:56

Kollekcioner2007 wrote 21 June 2007 02:29

It is very easy)))
double res = sqr(w)*h/3-h*pi*sqr(r)*(w-2*fabs((((y >= x && y >= -x) || (y < x && y < -x)) ? y : x)))/w;

Why is minus? ..w-2*fabs..

Discussion of Problem 1550. Dean's Pyramid 3