lyzqs的博客

Luogu5111 zhtobu3232的线段树

OI 2018-12-25

毒瘤动态开点线段树

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Codeforces Round #528 (Div. 2, based on Technocup 2019 Elimination Round 4)

OI 2018-12-23

又一次爆炸的cf div2

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Luogu遥远的国度

OI 2018-12-23

带换根操作的树剖

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[HNOI2018省队集训] Tree

OI 2018-12-23

换根意义下的线段树维护dfs序

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[HNOI2008]玩具装箱TOY

OI 2018-12-21

斜率优化裸题

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