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Show all threads Hide all threads Show all messages Hide all messages | Something is wrong with Check Program | Delyan | 1625. Hankel Matrix | 13 Feb 2014 16:45 | 9 | 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 I got AC using your method with first submission. Edited by author 10.08.2009 18:08 I use your method, but I got wa6. :( please help me. Edited by author 11.11.2009 21:43 Wow, its great, but how did you get to Catalan's numbers? please said me, what answer when n=20? thanks burn in hell with you spoiler | My bad... | Sergey Filipkov | 1625. Hankel Matrix | 3 Aug 2013 03:36 | 1 | Edited by author 03.08.2013 03:37 | Is it correct hankel matrix? | DEF | 1625. Hankel Matrix | 5 Sep 2008 03:19 | 3 | | 0 1 1 | | 1 1 1 | = 1 | 1 1 0 | Is it correct hankel matrix and answer for n = 3? It is a Hankel matrix, but is not answer, because |0| == 0 != 1 and | 0 1 | | 1 1 | == -1 != 1 Thank you for answer! I did not notice some conditions... | Can we have negative numbers in the matrix? | LSBG | 1625. Hankel Matrix | 1 Sep 2008 02:06 | 5 | Edited by author 17.08.2008 16:05 Apparently we are not allowed to use negative numbers. | There is something wrong with the Check Program, | TJU_HighRP | 1625. Hankel Matrix | 18 Aug 2008 16:22 | 3 | In the problem description we know that all output should be positive integers.But I submit a solution which contains '0' but it got accepted.I think the Check Program has something wrong. Statement isn't fully updated: Output positive integers α1, α2, …, α2n−1 ... But they must be only non-negative! |
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