摘要：
滑雪(ski) 题目描述 Michael喜欢滑雪。这并不奇怪，因为滑雪的确很刺激。可是为了获得速度，滑的区域必须向下倾斜，而且当你滑到坡底，你不得不再次走上坡或者等待升降机来载你。Michael想知道在一个区域中最长的滑坡。区域由一个二维数组给出。数组的每个数字代表点的高度。 Michael喜欢滑雪 阅读全文
摘要：
Puzzles Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities and ro 阅读全文
摘要：
Lorenzo Von Matterhorn Barney lives in NYC. NYC has infinite number of intersections numbered with positive integers starting from 1. There exists a b 阅读全文
摘要：
Barnicle Barney is standing in a bar and starring at a pretty girl. He wants to shoot her with his heart arrow but he needs to know the distance betwe 阅读全文
摘要：
Exponential notation You are given a positive decimal number x. Your task is to convert it to the "simple exponential notation". Let x = a·10b, where 阅读全文
摘要：
7月15日 今天不该打cf的，55555 手贱把B题给锁了，然后看别人的代码发现我的那个输0.0e0没答案。。。 C题二叉树性质，写了好久，平时写的太少，哎 代码太丑，就不发了，哭！ 阅读全文