摘要：Heap Partition A sequence S = {s1, s2, ..., sn} is called heapable if there exists a binary tree T with n nodes such that every node is labelled with 阅读全文

摘要：Japari Park is a large zoo home to extant species, endangered species, extinct species, cryptids and some legendary creatures. Due to a mysterious sub 阅读全文

摘要：Edward, the headmaster of the Marjar University, is very busy every day and always forgets the date. There was one day Edward suddenly found that if M 阅读全文

摘要：In a BG (dinner gathering) for ZJU ICPC team, the coaches wanted to count the number of people present at the BG. They did that by having the waitress 阅读全文

摘要：The bomb is about to explode! Please defuse it as soon as possible! There is a display showing a number from 1 to 4 on the bomb. Besides this, there a 阅读全文