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Which is/are your favorite Codeforces problem(s)?
By PeterNaut, 12 years ago, In English

Which programming problems have you enjoyed the most solving or you like its solution best, etc.?

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12 years ago, # |
  Vote: I like it +8 Vote: I do not like it

I liked 297E - Mystic Carvings, mostly because of the emoticon-like figures :). It also has a very elegant solution.

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12 years ago, # |
  Vote: I like it 0 Vote: I do not like it

for me it's Choosing Capital for Treeland

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12 years ago, # |
  Vote: I like it +3 Vote: I do not like it

My favourite problem is 242E - XOR on Segment.

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    12 years ago, # ^ |
      Vote: I like it +1 Vote: I do not like it

    you remembered me this blog :D

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      12 years ago, # ^ |
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      Amazing. Maybe you were lucky or submit it when the sever wasn't busy. I just copied your code and submit it and it get TLE!!! Here's the submission 3699691.

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        12 years ago, # ^ |
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        server does not affect the speed of compiler, try to submit it many times because the running time of this code is nearby the time limit and there is a little bit difference between running time for each submit, so I think you will succeed after a few tries :)

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          12 years ago, # ^ |
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          Yes. You are right. But you ARE lucky due to passed all tests in your first submission of this code :)

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    12 years ago, # ^ |
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    Which data structure did you use to solve the problem?

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      12 years ago, # ^ |
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      clearly it's segment tree.

      you can find here tutorial for this problem.

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      12 years ago, # ^ |
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      Segment tree. Actually I never understand segment tree and have many problems to code it for many problems, but I do code it for this problem. That's why I liked it. My code passed all tests using almost half of limits.

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12 years ago, # |
  Vote: I like it +11 Vote: I do not like it

Powerful array

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12 years ago, # |
  Vote: I like it +8 Vote: I do not like it

My favourite problem is 196B - Infinite Maze, from our contest. Idea: Hohol. Easy and tricky.

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12 years ago, # |
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'Dima and Horses' and 'Dima and Figure'

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12 years ago, # |
  Vote: I like it +6 Vote: I do not like it

140F - New Year Snowflake

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12 years ago, # |
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229C - Triangles is very interesting problem in my opinion.

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12 years ago, # |
  Vote: I like it 0 Vote: I do not like it

http://codeforces.net/problemset/problem/280/C http://codeforces.net/problemset/problem/268/E

I think they are interesting. They need very few codes.

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