摘要： 忍者村是忍者聚居的村子，相等于国家的军事力量。绝大部分村民都是忍者，有一些忍者会在村内开设书店、餐厅等，不过大部分忍者都是为村子执行任务的忍者，以赚取酬劳，并于战时为国家出战。村子亦会培训年轻村民成为忍者。 忍者们一般以三人一组执行各种任务，现在假设不同村子的忍者不会一起执行任务，给出一些忍者的组合 阅读全文

摘要： 给定一棵二叉树的中序遍历和前序遍历，请你先将树做个镜面反转，再输出反转后的层序遍历的序列。所谓镜面反转，是指将所有非叶结点的左右孩子对换。这里假设键值都是互不相等的正整数。 输入格式： 输入第一行给出一个正整数N（<=30），是二叉树中结点的个数。第二行给出其中序遍历序列。第三行给出其前序遍历序列。 阅读全文

摘要： Wildleopard had fallen in love with his girlfriend for 20 years. He wanted to end the long match for their love and get married this year. He bought a 阅读全文

摘要： In the year 2008, the 29th Olympic Games will be held in Beijing. This will signify the prosperity of China as well as becoming a festival for people 阅读全文

摘要： In the year 2008, the 29th Olympic Games will be held in Beijing. This will signify the prosperity of China and Beijing Olympics is to be a festival f 阅读全文

摘要： Numbers in English are written down in the following way (only numbers less than 109 are considered). Number abc,def,ghi is written as "[abc] million  阅读全文

摘要： In last winter, there was a big snow storm in South China. The electric system was damaged seriously. Lots of power lines were broken and lots of vill 阅读全文

摘要： In a party held by CocaCola company, several students stand in a circle and play a game. One of them is selected as the first, and should say the numb 阅读全文

摘要： Bonsai Font: Times New Roman | Verdana | Georgia Font Size: ← → Problem Description After being assaulted in the parking lot by Mr. Miyagi following t 阅读全文

摘要： This is a super simple problem. The description is simple, the solution is simple. If you believe so, just read it on. Or if you don't, just pretend t 阅读全文