Reku

05-14

Codeforces Round #412 (rated, Div. 1, based on VK Cup 2017 Round 3)

05-04

Codeforces Round #403 (Div. 2, based on Technocup 2017 Finals)

04-27

Tinkoff Challenge - Elimination Round

04-02

Codeforces Round #407 (Div. 2)

03-04

可持久化线段树

02-27

Codeforces Round #402 (Div. 1)

02-24

2013 Multi-University Training Contest 1

02-16

莫队算法

02-08

kd树练习：矩形区域查找

02-03

kd树练习:最近距离查询