Luogu P3943 - 星空

题面现有一个长度为 ...     Read more
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Jimmy Zhang Feb 05, 2019

浅谈离线分治算法

前言貌似这篇文章已经咕了快半年了(捂脸逃……离线分治算法的主要思想就是运用分治思想将动态数据结构问题...     Read more
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Jimmy Zhang Jan 28, 2019

Codeforces 1096F - Inversion Expectation

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

Few thoughts (December 2018)

iDive from the highest layer of Abstraction into t...     Read more
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Jimmy Zhang Dec 07, 2018

ICPC 2018 亚洲区域赛北京站游记

Day 0早早地到达了高铁站…… 北京之行时长竟然有     Read more
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Jimmy Zhang Nov 26, 2018

HDUOJ 4947 - GCD Array

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

Luogu P1829 - Crash 的数字表格

题面给定     Read more
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Jimmy Zhang Nov 21, 2018

浅谈莫比乌斯反演

简介最近经常演人/被人演,所以是时候学一学反演了。莫比乌斯函...     Read more
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Jimmy Zhang Nov 18, 2018

BZOJ 2187 - fraction

题面给定四个正整数 ...     Read more
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Jimmy Zhang Oct 28, 2018

BZOJ 3817 - Sum

题面给定正整数     Read more
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Jimmy Zhang Oct 28, 2018