摘要:
Given you a sequence of number a 1, a 2, ..., a n, which is a permutation of 1...n. You need to answer some queries, each with the following format: G 阅读全文
摘要:
Collecting one's own plants for use as herbal medicines is perhaps one of the most self-empowering things a person can do, as it implies that they hav 阅读全文
摘要:
In graph theory, the complement of a graph G is a graph H on the same vertices such that two distinct vertices of H are adjacent if and only if they a 阅读全文
摘要:
Jimmy experiences a lot of stress at work these days, especially since his accident made working difficult. To relax after a hard day, he likes to wal 阅读全文
摘要:
The math department has been having problems lately. Due to immense amount of unsolicited automated programs which were crawling across their pages, t 阅读全文