摘要：
题目： Problem Description In the game of DotA, Pudge’s meat hook is actually the most horrible thing for most of the heroes. The hook is made up of seve 阅读全文
摘要：
题目： Problem Description Let A1, A2, ... , AN be N elements. You need to deal with two kinds of operations. One type of operation is to add a given num 阅读全文