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| Показать все ветки Спрятать все ветки Показать все сообщения Спрятать все сообщения | | Something is wrong with Check Program | Delyan | 1625. Hankel Matrix | 13 фев 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 авг 2013 03:36 | 1 |
Edited by author 03.08.2013 03:37 | | Is it correct hankel matrix? | DEF | 1625. Hankel Matrix | 5 сен 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 сен 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 авг 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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