View Clarifications


[ Contest Page | Scoreboard | Submissions | Clarifications | Help | Log In ]


ProblemClarification
General I/O?

Please use standard in and standard out!

Input --
Java: Scanner in = new Scanner(new BufferedReader(new InputStreamReader(System.in)));
C: scanf("%d %d", &integer1, &integer2);
C++: int x; cin >> x;

Output --
Java: System.out.println("asdf");
C: printf("%d %d", integer1, integer2);
C++: int x = 5; cout << x << endl;
General Java class names?

Please use the following class names (make sure classes are public):

Problem A - public class A { ... }
Problem B - public class B { ... }
. . .
General Compilers?

gcc 4.9.2
javac 1.6.0_41
Python 2.6.6
ghc 7.0.4
A - Triangulate This! What is the size of a triangle? Does this refer to the area, length of one side, perimeter?

Sorry, that is a typo - should read 'side' not 'size' (like in the Output section)
A - Triangulate This! We seem to consistently be getting the incorrect output error message, we believe we are getting the correct output but are not sure on the type of the output, should we be printing integers? or are we supposed to output floats?

You are supposed to print integers. If you are getting an "Incorrect Output" verdict, that means that your output is incorrect.
(crowd: "Thank you Captain Obvious!")
General What is the input format of numbers greater than 1000, are there any spaces? or would 1 million look like 1000000.

There are no spaces or commas or any other delimiters. 10^6 is 1000000
D - Serves Me Right My D is "Not Yet Judged" for a long time.

Yes, it is - looking into it.
D - Serves Me Right what does E mean?

Read the problem statement. It is used right after you read it.
General For the C compilation, is the compiler being called with the -lm flag to allow the use of the standard math library math.h.
Also can we use the -std=c99 standard.

Here are compiler switches for C++:
-lm -O2 -std=c++0x
B - Best Buddies If we have more than 1 class in the file will it cause issues with compiling?

If more than one is declared public, yes.
Or if none are.
B - Best Buddies initially we had submission accepted but then it changed to: Submission Error (Please contact judge!)

Your submission killed the judge for some reason.
B - Best Buddies "Not Yet Judged" since 1:08, current time 1:20.

Yes, something weird is going on with Java and problem B
B - Best Buddies Why did I get Submission Error?

Due to some issues with solutions to B coded in Java crashing the server, I will have to judge these manually, please bear with me.
General Does the output need to always end with an empty line?

No? I am not sure what you are getting at, but we use diff -ws
D - Serves Me Right Can the log-in times span over multiple days(ie. one login at 23:30 and another at 00:00)?

No.
D - Serves Me Right Can you double check that in the judge data, a) a user can't log out without being logged in, b) a user can't log in while already logged in, c) all timestamps are in order, and d) all timestamps are unique?

Sure I can. Will I?

Sorry that was rude. But so was your assumption that we haven't done that before the contest.

I will check it.
B - Best Buddies we got this message: Submission Error (Please contact judge!)

after submitting B. Please advise what we should do next. Thanks

I have to judge it manually, sorry, trying to keep up.
A - Triangulate This! Why did I get Submission Error?

Because your solution to A managed to crash the server as did one to B.
I updated the verdicts, you still see Submission Error?
D - Serves Me Right Hi,

For question D, I was wondering does "TIME SERVER RESTART" mean a time value plus the string "SERVER RESTART" in the input file?

Also, the integer "TO" means timeout here or not?

Thanks,

yes
D - Serves Me Right The timeout can be < 1440. If the timeout is 0, does any LOG_IN count as a session starting?

timeout is greater than 0 (as per the statement)
F - Roots! Really? We are getting the correct output, it says Incorrect output. Why? How you test it?

Dozens of teams have solved it. So you are probably not getting a correct output.
G - Dyeing Dice should we print "0 0 0 0 0 0 ", if a colored face is getting colored again?

Read the problem statement.
G - Dyeing Dice in the sample output, they have it go north enough times that it would go out of the board. but in the description, it saids that if the dice is rolled out of the board, that is a bad thing. is the sample output actually correct?

Sample output is correct. Note that not all moves are used in some cases (read the problem statement)
B - Best Buddies For the second time we got judged as "accepted" and then it changed to "Submission Error (Please contact judge!)" a minute later what do?!?!??!

You get "Accepted" when judge runs out of resources. You solution actually keeps timing out, so may be a memory issue.
D - Serves Me Right We received contact the judge for submission error?

Will be judged manually.
B - Best Buddies we got this message: Submission Error (Please contact judge!)

after submitting B. Please advise what we should do next. Thanks

Will be judged manually.
D - Serves Me Right Why hasn't my entry been judged yet?

You were naughty...

Kidding, still judging
D - Serves Me Right Have to repeat the question from team202:

Can you double check that in the judge data, a) a user can't log out without being logged in, b) a user can't log in while already logged in, c) all timestamps are in order, and d) all timestamps are unique?

b) c) and d) were OK
a) was not
So, there were cases where, for instance, after a restart, a user was logging out.

I apologize for not accepting the blame at the time. If I had time to fix it, I would have.

IMO, it did not warrant rejudging after the fact. Data will be posted soon so you can judge for yourself (I haven't changed anything)


Ultra Cool Programming Contest Control Centre v1.8
Copyright (c) 2005-2015 by Sonny Chan