Блог пользователя nor

Автор nor, 2 года назад, По-английски

Thank you for participating in this round! We hope you found the problems interesting and/or funny.

Special thanks to dorijanlendvaj for helping with Polygon related issues. Preparing good tests for certain problems was in fact a good problem in itself (in fact, sometimes they were hard enough for usual CF rounds), and we will mention these problems for the interested reader.

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Problem A: idea: ToxicPie9, preparation: nor

Solution
Code (Python) for solution 1
Code (Python) for solution 2
Code (Python) for solution 3
Preparation trivia

Problem B: idea: dorijanlendvaj, preparation: dorijanlendvaj

Solution
Code (Python)
Preparation trivia

Problem C: idea: nor, preparation: nor

Solution
Code (Python)

Problem D: idea: Ari, preparation: Ari

Solution
Code (Python)
Preparation trivia

Problem E: idea: errorgorn, preparation: nor

Solution
Code (Python)

Problem F: idea: nor, preparation: nor

Solution
Code (Python)

Problem G: idea: nor, preparation: nor

Solution
Code (Python) for solution 1
Code (Python) for solution 2
Preparation trivia

Problem H1: idea: nor, preparation: nor

Solution
Code (Python)
Preparation trivia

Problem H2: idea: ToxicPie9, preparation: nor

Solution
Code (Python) for solution 1
Code (Python) for solution 2
Code (Python) for solution 3
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Fun fact: the extra task for D appeared on an ICPC regional last year; see here.