共计 28 篇文章

---

2025

04-08

题解 - CCPC Final 2022 B Disjoint Set Union

03-31

题解 - AGC071A XOR Cross Over

03-04

题解 - 省选联考 2025 图排列

01-07

题解 - AGC064D Red and Blue Chips

2024

11-29

题解 - Codeforces 2039 F1/F2 Shohag Loves Counting

11-18

题解 - 2024 十一月做题记录

10-07

题解 - 2024 十月做题记录

09-29

题解 - Aizu 2993 Invariant Tree

09-28

题解 - ARC118E Avoid Permutations

09-27

题解 - ZR 2925 逆序对(inversion)