Codeforces Round 1024 (Div. 1) 部分题目的题解：
A. Mex in the Grid
B. Quartet Swapping
C. 23 Kingdom
D. Mani and Segments
E. Kia Bakes a Cake
A. Mex in the Grid
B. Quartet Swapping
C. 23 Kingdom
D. Mani and Segments
E. Kia Bakes a Cake
大约 5 分钟
ICPC 2024 沈阳区域赛（Shenyang Regional）部分题解：
B. Magical Palette
D. Dot Product Game
G. Guess the Polygon
H. Guide Map
I. Growing Tree
B. Magical Palette
D. Dot Product Game
G. Guess the Polygon
H. Guide Map
I. Growing Tree
大约 4 分钟
ICPC 2018 World Finals（Codeforces Gym 102482）部分题目的题解：
A. Catch the Plane
B. Comma Sprinkler
E. Getting a Jump on Crime
H. Single Cut of Failure
I. Triangles
A. Catch the Plane
B. Comma Sprinkler
E. Getting a Jump on Crime
H. Single Cut of Failure
I. Triangles
大约 3 分钟