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

CCPC 2024 济南区域赛（Jinan Regional）部分题目的题解：
A. The Fool
B. The Magician
C. The Empress
E. The Chariot
G. The Wheel of Fortune
H. Strength

ICPC 2021 World Finals（Codeforces Gym 104288）部分题目的题解：
B. Dungeon Crawler
C. Fair Division
F. Islands from the Sky
H. Prehistoric Programs
I. Spider Walk
J. Splitstream
L. Where Am I?