ACM-ICPC 2018 徐州赛区网络预赛

本文提供了多项比赛题目的解题思路及代码实现,包括数学推导、枚举算法、期望计算等,覆盖了从简单到复杂的各类题目。
RankSolvedABCDEFGHIJK
157/15267/11OOØØ.OOOOOØ

O: 当场通过

Ø: 赛后通过

.: 尚未通过

A Hard to prepare

solved by chelly


chelly's solution

B BE, GE or NE

solved by ch


ch's solution

C Cacti Lottery

upsolved by chelly


chelly's solution

考虑枚举*代表的数字,对于每种情况,再枚举#代表的数字,算出每种决策的期望,选个最大的

D Easy Math

upsolved by chelly


chelly's solution

推一下式子,发现之后就是一个类似杜教筛复杂度的降规模,时间复杂度就足够过了。

E End Fantasy VIX

unsolved


F Features Track

solved by chelly


chelly's solution

G Trace

solved by chelly


chelly's solution

H Ryuji doesn't want to study

solved by ch


ch's solution

I Characters with Hash

solved by chelly


chelly's solution

J Maze Designer

solved by chell&ch


chelly's solution

K Morgana Net

upsolved by ch


ch's solution

upsolved by chelly

chelly's solution

考虑算出64*64的转移矩阵,然后矩阵乘法,用bitset优化

Replay

转载于:https://www.cnblogs.com/Amadeus/p/9615513.html

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