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Discussion of Problem 1625. Hankel Matrix

Something is wrong with Check Program
Posted by Delyan 8 Oct 2008 06:26
I make matrices from the sequence of Catalan numbers 1,2,5,14,42,132,429,1430,4862,...
Such matrices satisfy all criterion:
1)All numbers are positive integers
2) Determinants of all matrices are equal to 1
But I get WA2
Re: Something is wrong with Check Program
Posted by svr 23 Oct 2008 10:06
I got AC using your method with first submission.
Re: Something is wrong with Check Program
Posted by Hanzbrow (TNU) KCC 10 Aug 2009 15:27


Edited by author 10.08.2009 18:08
Re: Something is wrong with Check Program
Posted by KALO 28 Aug 2009 04:54
Use big numbers...
Re: Something is wrong with Check Program
Posted by Crash_access_violation 11 Nov 2009 21:43
I use your method, but I got wa6. :( please help me.

Edited by author 11.11.2009 21:43
Admins please check the problem
Posted by Crash_access_violation 23 Nov 2009 03:29
Re: Something is wrong with Check Program
Posted by Artem Khizha 25 Apr 2010 03:00
Wow, its great, but how did you get to Catalan's numbers?
Re: Something is wrong with Check Program
Posted by Crash_access_violation 5 Jul 2010 21:42
please said me, what answer when n=20? thanks
Re: Something is wrong with Check Program
Posted by Vit Demidenko 13 Feb 2014 16:45
burn in hell with you spoiler