2019年7月28日
PAT甲级——A1043 Is It a Binary Search Tree
摘要： A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties: The left subtree of a node contains only nodes 阅读全文
posted @ 2019-07-28 19:58 自由之翼Az 阅读(311) 评论(0) 推荐(0)
PAT甲级——A1042 Shuffling Machine
摘要： Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid "ins 阅读全文
posted @ 2019-07-28 14:40 自由之翼Az 阅读(251) 评论(0) 推荐(0)
PAT甲级——A1041 Be Unique
摘要： Being unique is so important to people on Mars that even their lottery is designed in a unique way. The rule of winning is simple: one bets on a numbe 阅读全文
posted @ 2019-07-28 13:31 自由之翼Az 阅读(212) 评论(0) 推荐(0)