CCPC 2024 Final 部分题目的题解：
B. Add One 3 / 加一 3
C. Iridescent Universe / 彩虹色的宇宙
E. Omniscient Artist / 全知艺术家
F. Witnessing the Miracle / 见证奇迹
G. + and × with a sugar / +, × 与糖
H. Qingyu's Little Training Center / 小青鱼的训练中心
K. Grotesque Team Reconstruction / 怪诞组队法
L. Yearning for Yonder / 对远方的向往

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 2024 南京区域赛（Nanjing Regional）部分题目的题解：
A. Hey, Have You Seen My Kangaroo?
B. Birthday Gift
C. Topology
E. Left Shifting 3
F. Subway
G. Binary Tree
I. Bingo
K. Strips
M. Ordainer of Inexorable Judgment

ICPC 2019 World Finals（Codeforces Gym 102511）部分题目的题解：
A. Azulejos
B. Beautiful Bridges
D. Circular DNA
E. Dead-End Detector
G. First of Her Name
H. Hobsons' trains
J. Miniature Golf

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