摘要:
2023 Hubei Provincial Collegiate Programming Contest A Prime Magic Walk Alone has a sequence $a_1,a_2,...,a_n$, and he can use a magic on it: Choose a 阅读全文
摘要:
rand 一些题目做一下,持续更新 平衡树 gym101261A Persistent Deque You need to process the following queries: B v x — Add x to the beginning of the deque with version 阅读全文