Recently (two weeks ago) RuCode Festival 7.0 concluded.
Let's discuss the problems here.
How to solve A from DIVAB? I know how to solve most tasks, except A, C, F and L.
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Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
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Codeforces (c) Copyright 2010-2024 Михаил Мирзаянов
Соревнования по программированию 2.0
Время на сервере: 24.11.2024 21:51:20 (i1).
Десктопная версия, переключиться на мобильную.
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Auto comment: topic has been translated by induk_v_tsiane (original revision, translated revision, compare)
Please refrain from discussing the problems publicly until 10:00 (UTC) on this Sunday (October 29th), because this contest will be used as the next round of Universal Cup.
You can discuss the problems now. We will post an official editorial within a couple of days.
Editorial is here: https://tsweb.ru/trains/231015/231015-tutorial.en.pdf
There is a simpler solution to Shoes, without any Farach-Colton-Bender. We write the same dp, but then we notice that all diagonal requests are monotonic, and use the sliding window technique. Working code — https://pastebin.com/yADA7VhC.
Nice!!