Waterloo ACM Contests - Clarifications

Problem	Clarification
General	Is this where I should ask questions about the contest during the contest? Yes.
General	Do our Java files have to have a particular name or is Main fine? They need to be A.java for problem A, B.java for problem B, etc.
General	what c++ version are we using g++ 13.0.3, which I think compiles C++20 code well. This is a practice contest thing to sort out, though.
General	If I do online do we have any zoom link we need to add in? No. Just be recording your screen if I wish to see if after the contest.
General	in problem C, is it modulo (10^9 + 7) or modulo (10^9) + 7? modulo (10^9+7), though I don't see one in the current problem C.
General	Has the contest started? Yes.
General	When is the contest going to start? 1:25pm
General	Can we organize the contest in a way so that the start times aren't pushed back by like 30 minutes every Fall contest Yes.
General	The scoreboard is incorrect, and we are working on fixing it TBA
E - E Minecraft Randomizer	the second example should output YES 1 1 not YES 1 2 can you confirm this? The output for the second sample is correct.
B - B The Halting Problem	What is the purpose of M in problem B? See the problem statement: "Two programs are different if their instructions differ at any position."
General	My scores from the practice are still displaying on the scoreboard (at least on my screen). We know. We are working on fixing that.
General	We believe the scoreboard is now accurate. Please let us know if any your submissions from today's contest are missing.
C - C If I Could Turn Back Time	If you are receiving the verdict Presentation Error, make sure that your output terminates with a newline.
E - E Minecraft Randomizer	For E, can multiple blocks have same result type? Ie, A goes to B, and C also breaks to B? Refer to the problem statement and sample input/output.
E - E Minecraft Randomizer	Is: YES 1 1 also a correct output for sample 2? The problem states there may be other valid answers. No comment on whether this is one such valid answer.
E - E Minecraft Randomizer	The example block type sequences always end with a repeating suffix of length one: eg. 1,1,1,1,... (or 2,2,2,2,...) Can a block type sequence end with a repeating suffix of length more than one: eg. 1, 2, 1, 2, 1, 2, ... No comment. Reread the problem statement.
B - B The Halting Problem	could you please explain example number 3 on problem which is "3 1" I don't think that it should be 45. We can't clarify, and the example is correct.
General	Where is the post-contest discussion? MC 4020

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