Tsinghua Bootcamp 2025 预选赛部分题目的题解：

ICPC 2024 西南欧区域赛（Southwestern European Regional / SWERC 2024）部分题解：
B. Divine Gifting
C. Phryctoria
E. Building the Fort
F. Yaxchilán Maze
J. Recovering the Tablet
K. Disk Covering
L. The Charioteer

ICPC 2024 横滨区域赛（Yokohama Regional）部分题目的题解：
A. Ribbon on the Christmas Present
B. The Sparsest Number in Between
C. Omnes Viae Yokohamam Ducunt?
D. Tree Generators
E. E-Circuit Is Now on Sale!
F. The Farthest Point
G. Beyond the Former Explorer
I. Greatest of the Greatest Common Divisors

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 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 2022 南京区域赛（Nanjing Regional）部分题目的题解：
A. 停停，昨日请不要再重现（Stop, Yesterday Please No More）
B. 索道（Ropeway）
D. 聊天程序（Chat Program）
I. 完美回文（Perfect Palindrome）
J. 完美匹配（Perfect Matching）
K. 堆里的 NaN（NaN in a Heap）
M. 清空水箱（Drain the Water Tank）

CCPC 2024 哈尔滨区域赛（Harbin Regional）部分题目的题解：
A. Build a Computer
B. Concave Hull
D. A Simple String Problem
E. Marble Race
G. Welcome to Join the Online Meeting!
I. A Brand New Geometric Problem
J. New Energy Vehicle
K. Farm Management
L. A Game On Tree

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 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?