Codeforces 1096F - Inversion Expectation

题面给定一个长为     Read more
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Jimmy Zhang Jan 23, 2019

HDUOJ 4947 - GCD Array

题面对于长度为     Read more
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Jimmy Zhang Nov 24, 2018

第九届“浪潮杯”山东省程序设计竞赛

简介“2018杭电ACM集训队单人排位赛 - 3” 采用了这一套题,然后我成功地...     Read more
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Jimmy Zhang Jul 19, 2018

Codeforces 961E - Tufurama

题面Polycarp 决定二刷他最喜欢的电视剧 Tufurama,但是当他搜索这个电视剧的时候发现如果第     Read more
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Jimmy Zhang Apr 06, 2018

POJ 1990 - MooFest

题面Farmer John 的     Read more
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Jimmy Zhang Apr 01, 2018