【CodeForces 628A】Tennis Tournament（水题）

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于 2016-04-12 13:47:28 发布

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分类专栏： ACM 文章标签： codeforces 628A

本文链接：https://blog.youkuaiyun.com/iceiceicpc/article/details/51132752

这篇博客介绍了如何计算一场有n名参赛者的网球锦标赛所需的水和毛巾数量。比赛按照奥林匹克系统进行，每轮比赛最多有k（2的幂）位选手，其中一半晋级，另一半直接进入下一轮。每场比赛需要每位选手b瓶水和一位裁判一瓶水，每位选手在整个比赛期间还需要p条毛巾。博客提供了样例输入和输出，并解释了如何得出答案。

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Description

A tennis tournament with n participants is running. The participants are playing by an olympic system, so the winners move on and the losers drop out.

The tournament takes place in the following way (below, m is the number of the participants of the current round):

let k be the maximal power of the number 2 such that k ≤ m,
k participants compete in the current round and a half of them passes to the next round, the other m - k participants pass to the next round directly,
when only one participant remains, the tournament finishes.
Each match requires b bottles of water for each participant and one bottle for the judge. Besides p towels are given to each participant for the whole tournament.

Find the number of bottles and towels needed for the tournament.

Note that it’s a tennis tournament so in each match two participants compete (one of them will win and the other will lose)