Hohol's blog

OpenCup гран-при Украины
By Hohol, 15 years ago, In Russian

Контест закончился, давайте пообсуждаем. Как решать C?

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15 years ago, hide # |
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I wonder how checker works on problem E.

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    15 years ago, hide # ^ |
     
    Vote: I like it +8 Vote: I do not like it

    Heard of Nim?

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    15 years ago, hide # ^ |
     
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    The problem won't change much if you replace K with 18 — K. According to the constraints (K <= 18, output length <= 2^9+36) a simple brute force checker should suffice: binom(18,9)*2^9 ≈ 25 millions, a factor of 18 being avoided by bit hacks

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14 years ago, hide # |
 
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to slowww

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