這份筆記由 吳京澤 Jimmy Wu 所撰，有興趣幫忙寫可以找我
soical:
Email: real.jingzewu@gmail.com
X: https://x.com/JimmyWuReal
GitHub: https://github.com/JimmyWuReal
Threads: https://www.threads.com/@23r0th
competitive programming:
Codeforces: https://codeforces.com/profile/Jingze
AtCoder: https://atcoder.jp/users/Jingze(幾乎沒用)
LeetCode: https://leetcode.com/u/Jingze_
CodeChef: https://www.codechef.com/users/jingze
DMOJ: https://dmoj.ca/user/Jingze