原文:ICPC Southeast USA 2020 Regional Contest problem C: Bitonic Ordering(贪心)

题目描述 Noah suggests the following card game: You are given a deck of cards, each with a distinct positiveinteger value written on it. The cards are shuf ed and placed in a row. Your objective is toarr ...

2021-04-12 07:46 0 248 推荐指数:

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The 2020 ICPC Asia Macau Regional Contest

A - Accelerator 设加速器序列为 \(a_1, a_2, \cdots, a_n\),那么考虑把题目里的式子展开:\(a_n+a_na_{n-1}+a_na_{n-1}a_{n-2}+ ...

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