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Discussion of Problem 1411. 40 Islands KnightsShen Yang this problem can be set n,m<=1000 // Problem 1411. 40 Islands Knights 18 Apr 2018 13:51 there is O(n*m) D&C algorithm... similar with ural 1674 and ural 1596 fstilus[SESC 18] WA#26 [1] // Problem 1411. 40 Islands Knights 16 Nov 2015 21:59 Give that test, pls... fstilus[SESC 18] Re: WA#26 // Problem 1411. 40 Islands Knights 3 Dec 2015 14:35 Try test: 50 50 Timur Sitdikov (MSU Tashkent) If WA#22 [2] // Problem 1411. 40 Islands Knights 14 Jun 2011 11:51 Try test 8 3 Answer may be O-O-O-O-O-O-O-O |\ \| | | |/ /| O-O O O O O O-O |/ / /| |\ \ \| O-O-O-O-O-O-O-O xurshid_n Re: If WA#22 // Problem 1411. 40 Islands Knights 10 May 2012 14:58 have a theotical solution? (i.e. with searching or something like..). fstilus[SESC 18] Re: If WA#22 // Problem 1411. 40 Islands Knights 16 Nov 2015 21:57 No, try test 3 8 First time I failed at this test but I fixed this maks решение [1] // Problem 1411. 40 Islands Knights 13 May 2012 22:33 скиньте пожалуйста кто нибудь код данной задачи,вы меня очень сильно выручите,мне не нужен код для этого сайта,он мне нужен для учебы,я ее решаю почти месяц и ничего не получается,ПОЖАЛУСТА мой майл www.max_boy93@mail.ru мой скайп maks1mka11 вы меня очень выручите Noob Re: решение // Problem 1411. 40 Islands Knights 14 May 2012 00:23 Отправь смс с кодом задачи (в данном случае - 1411) на короткий номер 1278, и в течение суток на твою почту придет решение. maks help [5] // Problem 1411. 40 Islands Knights 11 May 2012 02:34 киньте пожалуйста код задачи,для школы учитель попросил Erop [USU] Re: help [4] // Problem 1411. 40 Islands Knights 11 May 2012 02:48 try do it yourself you can find some hints in forum maks Re: help // Problem 1411. 40 Islands Knights 12 May 2012 01:06 I really need to, please, I have little time left to write in a skype-maks1mka11 maks Re: help [2] // Problem 1411. 40 Islands Knights 12 May 2012 01:07 I understand that it is useful to me, but I do not have time alpha sigma Re: help [1] // Problem 1411. 40 Islands Knights 12 May 2012 20:46 гуд дрим!!! Edited by author 12.05.2012 20:47 Edited by author 12.05.2012 20:47 Edited by author 12.05.2012 20:47 maks Re: help // Problem 1411. 40 Islands Knights 13 May 2012 02:05 киньте решение на майл ПЛИЗЗ www.max_boy93@mail.ru maks give a code // Problem 1411. 40 Islands Knights 10 May 2012 18:02 скиньте пожалуйста код этой программы на с++ или паскал,не могу сделать задачу в универе. throw off please a code of this program on with ++ or Paskal, I can not make a task in University. Edited by author 10.05.2012 18:03 dmitri_quick help, plz [1] // Problem 1411. 40 Islands Knights 25 Aug 2009 20:48 please give me test #35 or answer n=7 m=5 Kolyanich Re: help, plz // Problem 1411. 40 Islands Knights 15 Feb 2011 01:08 There must be exactly 3 * n * m / 2 bridges. So if n and m are both odd then no valid map possible svr WA42(1411) 40 Islands [5] // Problem 1411. 40 Islands Knights 18 Jan 2007 11:31 Fine problem but unexpected WA42. It may be bug of judj validator also because of very many ways to build right net and therefore using undirect verification of our answers. My prog gives 1. n<3 or m<3-Imaginary 2. n=2*k+1 and m=2*l+1- Imaginary 3. n==3 and m<=7-Imaginary 4. n<=7 and m==3- Imaginary 5. Other cases: Regular and symmetric pictures with obvious correctness Soon I will use Inverse program 40 Islands -1419 svr Re: WA42(1411) 40 Islands [4] // Problem 1411. 40 Islands Knights 18 Jan 2007 11:35 svr wrote 18 January 2007 11:31 Fine problem but unexpected WA42. Soon I will use Inverse program 40 Islands -1419(I have Ac)It may be bug of judj validator also because of very many ways to build right net and therefore using undirect verification of our answers. My prog gives 1. n<3 or m<3-Imaginary 2. n=2*k+1 and m=2*l+1- Imaginary 3. n==3 and m<=7-Imaginary 4. n<=7 and m==3- Imaginary 5. Other cases: Regular and symmetric pictures with obvious correctness Soon I will use Inverse program 40 Islands -1419 as validator of my own and my suspictions will be confirmed svr Re: WA42(1411) 40 Islands [3] // Problem 1411. 40 Islands Knights 19 Jan 2007 22:28 Help,please! Who can. Have WA42 But MyAC 1419 Inverse Program confirms all answers in range n,m in [1..50] svr Re: WA42(1411) 40 Islands [2] // Problem 1411. 40 Islands Knights 19 Jan 2007 22:51 Eecuse me. Have ac Now Wa42=7*6. Was bug. And Ac 1419 said this but I talked wrong. Jerry Re: WA42(1411) 40 Islands [1] // Problem 1411. 40 Islands Knights 18 Aug 2007 07:46 Ask for AC Code svr Re: WA42(1411) 40 Islands // Problem 1411. 40 Islands Knights 18 Aug 2007 17:08 Will send to internet adress under condition that it will be worked with but not used for AC only. xXx WA#50!!!! WHY???? // Problem 1411. 40 Islands Knights 25 Jan 2006 00:28 What the test? Kit (Vologda SPU) Need a help (+) [3] // Problem 1411. 40 Islands Knights 31 Oct 2005 12:57 What the phrase "form a rectangle" means? Does this islands form a rectangel 4*3? OOOO OO O OOOO and this OOO OOOO OOO Sample output is also answer for test 40 40? Thanks for a help. Ivankov Dmitry Re: Need a help (+) [2] // Problem 1411. 40 Islands Knights 31 Oct 2005 14:38 It means that each node of rectangular grid is an island. So 4*3 rectangle is OOOO OOOO OOOO Safe Bird Yes, you're right. [1] // Problem 1411. 40 Islands Knights 31 Oct 2005 18:29 Kit Re: Yes, you're right. // Problem 1411. 40 Islands Knights 12 Jan 2006 20:18 Thank you all. I just thinked, that there is exactly 40 islands ;)
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