摘要：262144K Mur loves hash algorithm, and he sometimes encrypt another one's name, and call him with that encrypted value. For instance, he calls Kimura K 阅读全文

摘要：Rendezvous on a Tetrahedron 题目描述 One day, you found two worms P and Q crawling on the surface of a regular tetrahedron with four vertices A, B, C, and 阅读全文