摘要:
一、题目描述 Design a data structure that supports the following two operations: search(word) can search a literal word or a regular expression string conta 阅读全文
摘要:
一、问题描述 We are given two arrays A and B of words. Each word is a string of lowercase letters. Now, say that word b is a subset of word a if every lette 阅读全文