Problem Description * Seller: That will be fourteen dollars. * Buyer: Here's a twenty. * Seller:

Problem Description A city is made up exclusively of one-way steets.each street in the city has a c

Problem Description What do you do if you need to copy a 560x400mm image onto a standard sheet of U

Problem Description In this problem, you are given a sequence S1, S2, ..., Sn of squares of differe

Problem Description 渴望占有愈多而愈脆弱。 —— 安妮宝贝 古有Bill gates辍学创业，今有Wiskey创作卖书。但是如今网络写手太多，

Problem Description There are a bunch of stones on the beach; Stone color is white or black. Little

roblem Description This time Vance controls a hero, enchantress and let's just called her Aiushtha.

Problem Description In order to get rid of Conan, Kaitou KID disguises himself as a teacher in the

Problem Description There are many questions about the tree, most of them are Binary tree. But now,

Problem Description Mr.Frost is a child who is too simple, sometimes naive, always plays some sim

Problem Description As we all know, sheep are very lazy, they don’t like move and just want to en

Problem Description Topsky wants to build a content delivery network. It contains an origin server

Problem Description AmazingCaddy likes Sudoku very much. One day, he got some Sudoku problems and h

Problem Description Now I'm in my school and I want to go back home as on time. However my bicycle

Problem Description Give you a triangle ABC. Get more information in the picture below. Now, g

Problem Description N items are to be processed with two product lines. YY operates the first line,

Problem Description Once upon a time, there was a graph. Actually, it was an undirected forest, i.e

Problem Description Once upon a time, there was a famous university called Famous University. As th

Problem Description You are given a board with 8×8 squares. In each square, there can be either a c

Problem Description The three hands of the clock are rotating every second and meeting each other m

Problem Description 给定一个日期，输出这个日期是该年的第几天。 Input 输入数据有多组，每组占一行，数据格式为YYYY/MM/DD组成，具体参见sample i

Problem Description 飞镖是在欧洲颇为流行的一项运动。它的镖盘上分为20个扇形区域，分别标有1到20的分值，每个区域中有单倍、双倍和三倍的区域，打中对应的区域会得到分值乘以倍数所对

Problem Description 电子科大清水河校区是电子科大大力兴建的未来主校区，于07年秋正式迎接学生入住，目前有07、08级本科生及部分研究生在此校区学习、生活。 清水河校区位于成都高

Problem Description Your task are to write a program that imitates a simple desk calculator. Your c

Problem Description A rooted graph is an indirected graph with every edge attached by some path to

Problem Description 电子科大本部食堂的饭卡有一种很诡异的设计，即在购买之前判断余额。如果购买一个商品之前，卡上的剩余金额大于或等于5元，就一定可以购买成功（即使购买后卡上余额为负

Problem Description 大家都知道，pfz是“成电杰出学生”，在成电杰出学生的颁奖典礼上，lxh和pfz都没有听台上在说什么，而是在下面讨论当晚的美式足球比赛，lxh预测说纽约巨人队

Problem Description 有N对双胞胎，他们的年龄分别是1，2，3，……，N岁，他们手拉手排成一队到野外去玩，要经过一根独木桥，为了安全起见，要求年龄大的和年龄小的排在一起，好让年龄大

Problem Description The beginning of a winter break near Spring Festival is always the beginning of

Problem Description 在每年的校赛里，所有进入决赛的同学都会获得一件很漂亮的t-shirt。但是每当我们的工作人员把上百件的衣服从商店运回到赛场的时候，却是非常累的！所以现在他们想