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| easy bfs | 👑TIMOFEY👑 | 1419. Maps of the Island Worlds | 1 Jan 2023 18:40 | 1 |
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| Test with bridge | RybKMU | 1419. Maps of the Island Worlds | 14 Jul 2022 13:47 | 2 |
27 5
O-O-O-O-O-O-O O-O-O-O-O-O-O
|\ \| | | |/| |\| | | |/ /|
O-O O O O O O-O O O O O O-O
|/ / /| |\ \| |/ /| |\ \ \|
O-O-O-O-O-O-O O-O-O-O-O-O-O
Answer: Just a picture
Edited by author 20.06.2023 20:06 |
| WA #10 | Stephen Ostapenko | 1419. Maps of the Island Worlds | 20 Mar 2022 15:35 | 2 |
WA #10 Stephen Ostapenko 31 Aug 2017 20:20 What can you tell me about test#10? Is it correct? |
| WA14 | Makar | 1419. Maps of the Island Worlds | 4 Dec 2014 21:47 | 1 |
WA14 Makar 4 Dec 2014 21:47 Can't get it. What in this test case.
P.S. finding bridges from e-maxx with deep of recursion. |
| I u have WA #7 | † SiriuS † [TWYT Union] | 1419. Maps of the Island Worlds | 22 May 2014 16:47 | 1 |
I got WA #7 several times. If u also got WA just try this test:
9 5
O-O-O-O-O
|\ \|/ /|
O-O O O-O
|/|\ /|\|
O-O-O-O-O
It helped me to get AC. |
| WA16... Need help | 3a[3.141592..]Jlu | 1419. Maps of the Island Worlds | 18 Jan 2012 23:48 | 2 |
I've got wa16 :( Please give me some useful tests. In test 16 there is a other simbol that not is 'O','-','|','/','\',' '. the answer is no.
Sorry for poor Engilsh. |
| an interesting test | taobingxue | 1419. Maps of the Island Worlds | 3 Jan 2011 18:28 | 2 |
15 15
O-O-O-O-O-O-O-O
|\| | | | | |/|
O O-O-O-O-O-O O
|\ /|
O-O O-O-O-O O-O
|/ /| | | |\ \|
O O-O O-O O-O O
| | | | | | | |
O O-O O-O O-O O
|\ \| | | |/ /|
O-O O-O-O-O O-O
|/ \|
O O-O-O-O-O-O O
|/| | | | | |\|
O-O-O-O-O-O-O-O
Edited by author 01.10.2009 19:57 Wow! This test really helped me with WA#12. I just forgot to check if the graph is connected before finding bridges. Thank you a lot!
Edited by author 03.01.2011 18:28
Edited by author 03.01.2011 18:28 |
| Test 17 contents | Fyodor Menshikov | 1419. Maps of the Island Worlds | 30 Dec 2010 21:21 | 2 |
In test 17 there is a bridge, that is an edge in connected graph removing which makes the graph disconnected.
Edited by author 03.01.2007 01:20
Edited by author 30.12.2010 22:47
Edited by author 30.12.2010 23:00 |
| No subject | Denis Koshman | 1419. Maps of the Island Worlds | 25 Aug 2008 23:28 | 1 |
Edited by author 25.08.2008 23:29 |
| Good problem) | AlexF [USTU Frogs] | 1419. Maps of the Island Worlds | 15 Nov 2007 09:30 | 7 |
Thanks to author) And I'm the 100 person who've solved it)
Edited by author 12.11.2007 16:16 agree...
just one clever DFS :) I think this problem has more troubles with accurate coding, and checking map) I've made the most stupid finding all bridges (DFS for everyone) and got AC) But maybe you've solved it using ONLY clever DFS?
Edited by author 13.11.2007 09:44 No, I solved it using one DFS and one function check :) Can you show me your code) It's interesting how to find all bridge in one DFS) my mail typhoon@e1.ru |
| Is it possible to change Time Limit? | Fyodor Menshikov | 1419. Maps of the Island Worlds | 21 Feb 2007 01:17 | 2 |
There are two algorithms of determining a bridge in the graph: simple and advanced. Simple algorithm O(n^2) works more than 1s if written in Java, but less than 1s if written in C++.
I suggest to lower time limit to 0.5s, after that only advanced solutions O(n), (n=number of islands) will be accepted. My first C++ solution O(n^n) runs about 0.3sec, so i think it's useless to decrease time limit. |
| What happened to Java compiler? | Fyodor Menshikov | 1419. Maps of the Island Worlds | 14 Jan 2007 07:55 | 1 |
Two weeks ago my solution in Java was accepted, recently I tried to submit it and got Crash. Using 'extends Thread' to increase stack size I got Accepted again.
What happened to Java compiler? Was Java 6 installed?
Edited by author 14.01.2007 08:00 |
| unclear | Markovits Daniel Mihai | 1419. Maps of the Island Worlds | 3 Jan 2007 01:28 | 2 |
unclear Markovits Daniel Mihai 27 Oct 2006 15:45 I would be glad if someone could tell me exactly which of the restrictions are nedeed. It is unclear to me why I get WA at test16.. i think that my program works as I expect just that I have either to many or to less restrictions. which of them are nedeed? and is "Our neighbors were the Twelfth, the Twenty Fourth, and the Thirtieth islands..." relevant???
thanks "Our neighbors were the Twelfth, the Twenty Fourth, and the Thirtieth islands..." irrelevant |
| I have WA#17. What is this test? Please give me some tests | EfremovAleksei - Kirov | 1419. Maps of the Island Worlds | 7 Nov 2006 08:04 | 4 |
WA17 too... it`s not error in bridge, maybe with input.
in some test line have less then W character. this is bug in test, or not? will amyone who got AC tell us where's wrong? |
| Must there be 40 islands in the map? | SuZhan | 1419. Maps of the Island Worlds | 29 Oct 2005 18:53 | 2 |
Depends on input. Each node of integer grid contains an island. |
