摘要:
http://202.197.224.59/OnlineJudge2/index.php/Problem/read/id/1250 Super Fast Fourier Transform Bobo has two sequences of integers {a1,a2,…,an} and {b1 阅读全文
摘要:
http://202.197.224.59/OnlineJudge2/index.php/Problem/read/id/1252 Defense Tower In ICPCCamp, there are n cities and (n−1) (bidirectional) roads betwee 阅读全文