iscsi's blog

By iscsi, 13 years ago, In English
Hi,

The site is really good, I really enjoy the last competition. But I have lot of question:

1: The hacking is doesn't clear for me, how I can hacking someone else solution in the competition. I didn't see any button, I guess and hope I can't see someone else solution so I think it maybe works if someone send a "hack" then the other room player solution will be tested with this, am I right? I don't understand the timing of the hack for example is there any advantage of the sooner "hack" or late "hack"?

2: In the "problemset" menu sometimes I see the type of the problem for example dp, implemtation etc. But know I just see the 80 B, 80 A type, why? The implementation type what mean?

3: Once a time I saw problem set analysis but know I couldn't find (in the menu), where is it? :)

4: When just one division competition announced for example "Codeforces Beta Round #70 (Div. 2)" who can be a participant on this? just -1500 rating or a newbie?

5: Is there any advantage a precompiled soltion, and submit a binary than just copy paste the code and submit?

Thanks,
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13 years ago, # |
Rev. 2   Vote: I like it +5 Vote: I do not like it
1.
a. pass pretests for some problem
b. lock your problem on contests main page
c. open your room
d. double-click on someones problem that you closed
e. see the source, find bugs
f. submit a test or a test-generator if the test is huge (over 20kb)

Early hack is better because someone can steal your probably hacks. Depends on problems and on room, luck and other stuff.

2.
80C-E are 77A-C.
Implementation = You must realize what is required in the task.

3. Check that post to find the analysis.

4. Now Div 2 includes blue, so Div 2 is for newcomers and 0-1649 rating.

5. You can submit only source code, never binaries.
  • 13 years ago, # ^ |
      Vote: I like it 0 Vote: I do not like it
    Thank you!

    2.I think you misunderstood this question (maybe it's my fault), now I see at the "problemset" menu:
    "80 B  Depression .. geometry, math .."
    "80 A Panoramix Predistion.. math, number theory.."
    the other problems I don't see the type of the problem, just the name, but I think I saw it once (the type of te other problem), but i don't know where and how..?!

13 years ago, # |
  Vote: I like it +3 Vote: I do not like it
If someone submitted binaries, no one would be able to hack his solution.