WhyWhy

摘要： The mobile application store has a new game called "Subway Roller".The protagonist of the game Philip is located in one end of the tunnel and wants ... 阅读全文

摘要： Alice and Bob decided to eat some fruit. In the kitchen they found a large bag of oranges and apples. Alice immediately took an orange for herself, ... 阅读全文

摘要： Andrewid the Android is a galaxy-known detective. Now he is preparing a defense against a possible attack by hackers on a major computer network.In ... 阅读全文

摘要： 一个算法的复杂度可以说也就是一个算法的效率，一般来说分为时间复杂度和空间复杂度。。。 注意接下来说的均是比较YY的，适用与ACM等不需严格分析只需要大致范围的地方，至于严格的算法复杂度分析的那些数学证明，主定理什么的在《算法导论》这本书上有十分详细的讲解，网上应该也会有人写过，这里就不多说了（... 阅读全文

摘要： In a far away galaxy there areninhabited planets, numbered with numbers from1ton. They are located at large distances from each other, that's why th... 阅读全文

摘要： Zxr960115 is owner of a large farm. He feedsmcute cats and employspfeeders. There's a straight road across the farm andnhills along the road, number... 阅读全文

摘要： 接下来说说一些ACM里面的常识和错误。。。（可能会比较乱） —— 首先ACM里面的代码都是要提交上去，然后让计算机自动判题的，所以。。。千万不要把 system("pause"); 加上去，不管自己怎么搞，提交之前千万记得不要有这句话，不然怎么死的都不知道。 —— 然后就是提交上去之后是立马... 阅读全文

摘要： —— 简单介绍一下ACM里面的输入输出。。。 —— 主要说C++的输入输出（其实其他的我不会。。。）。 —— C++里面有输入输出流，也就是cin和cout，用起来也算是比较方便吧。。。 —— 但是，ACMer好像不怎么用这个，大都用scanf，printf这两个不是很方便的C语言遗留输入... 阅读全文

摘要： In the country there are exactlyncities numbered with positive integers from1ton. In each city there is an airport is located.Also, there is the onl... 阅读全文

摘要： "Couple Trees" are two trees, a husband tree and a wife tree. They are named because they look like a couple leaning on each other. They share a sam... 阅读全文