Blog

07-14

Atcoder Beginner Contest 257 Ex

07-14

BZOJ3309 Solution

04-11

Luogu 7526

04-11

NOIP 出题模板（Tex）

04-06

CodeForces Global Round 2 H

03-03

PKUSC & PKUWC 2018 选解

03-01

Codeforces Educational Round 123

02-10

从多项式乘法到快速傅里叶变换

02-10

Codeforces Round 770

02-10

CCPC 2021 Harbin G Damaged Bicycle