TIR-OlympicOlimpik's blog

IOI 13
By TIR-OlympicOlimpik, 11 years ago, In English

Hello Codeforces People... IOI 2013 Contest has ended. I dont know solutions about Robots,Wombats and Game... Could you share solutions? Thanks...

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11 years ago, # |
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Here in the end Robots and Game IOI2013, день 2

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11 years ago, # |
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Day 1

Day 2

I'd also like to know another 100 Point approach for Artclass :)

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    11 years ago, # ^ |
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    My friend had a ten-line 100p solution. I was stunned!

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      11 years ago, # ^ |
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      How? Teach me master :D

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        11 years ago, # ^ |
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        It goes something like this:

        Turn the image to grayscale, calculate the average of absolute differences of values for all adjacent pixel pairs. You can experiment with images given to find appropriate bounds of this value for each class. After you did that, you code them as four if-s. It turns out this works around 91% of the time, of course, scoring 100p. Amazingly simple.

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