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Stack arrays in sequence horizontally (column wise). Take a sequence of arrays and stack them horizontally to make a single array. Rebuild arrays divi 阅读全文
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首先开机或者重启，在启动项选择菜单处记住win7对应的序号，从上至下的序号从0开始计数，我的win7系统选项处于第5个，那么序号就应该是4，记住后，打开ubuntu系统。 首先开机或者重启，在启动项选择菜单处记住win7对应的序号，从上至下的序号从0开始计数，我的win7系统选项处于第5个，那么序号 阅读全文
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sudo apt-get update sudo apt-get dist-upgrade sudo apt-get install --reinstall software-center 阅读全文
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输入root帐号和密码，出现以下错误： Error found when loading /root/.profile stdin:is not a tty 解决方法： 在终端中用命令：gedit /root/.profile 打开文件后，找到"mesg n",并将其改为“tty -s && mes 阅读全文
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遇到的第一个问题： 原因：注释里面出现了中文，而 Python 支持的 ASCII 码无中文。 解决方法：在头文件中添加如下代码： 注意：本行要添加在源代码的第一行。 阅读全文
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P1 : hiho密码 P1 : hiho密码 Time Limit:10000ms Case Time Limit:1000ms Memory Limit:256MB Description 小Ho根据最近在密码学课上学习到的知识，开发出了一款hiho密码，这款密码的秘钥是这样生成的：对于一种有N 阅读全文
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旧键盘上坏了几个键，于是在敲一段文字的时候，对应的字符就不会出现。现在给出应该输入的一段文字、以及实际被输入的文字，请你列出肯定坏掉的那些键。 输入格式： 输入在2行中分别给出应该输入的文字、以及实际被输入的文字。每段文字是不超过80个字符的串，由字母A-Z（包括大、小写）、数字0-9、以及下划线“ 阅读全文
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Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum. F 阅读全文
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Contest time again! How excited it is to see balloons floating around. But to tell you a secret, the judges' favorite time is guessing the most popula 阅读全文
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Give a natural number n (1 <= n <= 500000), please tell the summation of all its proper divisors. Definition: A proper divisor of a natural number is 阅读全文
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Among grandfather��s papers a bill was found: 72 turkeys $_679_ The first and the last digits of the number that obviously represented the total price 阅读全文
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As part of an arithmetic competency program, your students will be given randomly generated lists of from 2 to 15 unique positive integers and asked t 阅读全文
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1 typedef struct node{ 2 int val; 3 struct node *left, *right; 4 }TreeNode; 5 //求二叉树的节点个数。 6 int GetNodeNum(TreeNode *pRoot){ 7 if(pRoot == NULL) 8 return 0; 9 ... 阅读全文
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题目1184：二叉树遍历 时间限制：1 秒 内存限制：32 兆 特殊判题：否 提交：4167 解决：1690 题目描述： 编一个程序，读入用户输入的一串先序遍历字符串，根据此字符串建立一个二叉树（以指针方式存储）。例如如下的先序遍历字符串：ABC##DE#G##F###其中“#”表示的是空格，空格字 阅读全文
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In Zhejiang University, there is a famous BBS named Freecity. Usually we call it 88. Recently some students at the Humour board on 88 create a new gam 阅读全文
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Superbowl Sunday is nearly here. In order to pass the time waiting for the half-time commercials and wardrobe malfunctions, the local hackers have org 阅读全文
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Bill and Ted are taking a road trip. But the odometer in their car is broken, so they don't know how many miles they have driven. Fortunately, Bill ha 阅读全文
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Roy has just moved into a new apartment.Well, actually the apartment itself is not very new, even dating back to the days before people had electricit 阅读全文
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Given a list of monetary amounts in a standard format, please calculate the total amount. We define the format as follows: 1. The amount starts with ' 阅读全文
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J.P. Flathead's Grocery Store hires cheap labor to man the checkout stations. The people he hires (usually high school kids) often make mistakes makin 阅读全文
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Zombies love to eat brains. Yum. Input The first line contains a single integer n indicating the number of data sets. The following n lines each repre 阅读全文
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Given a list of phone numbers, determine if it is consistent in the sense that no number is the prefix of another. Let's say the phone catalogue liste 阅读全文
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Mike is very lucky, as he has two beautiful numbers, 3 and 5. But he is so greedy that he wants infinite beautiful numbers. So he declares that any po 阅读全文
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Prime Number Definition An integer greater than one is called a prime number if its only positive divisors (factors) are one and itself. For instance, 阅读全文
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In recreational mathematics, a magic square of n-degree is an arrangement of n2 numbers, distinct integers, in a square, such that the n numbers in al 阅读全文
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Given positive integers B and N, find an integer A such that AN is as close as possible to B. (The result A is an approximation to the Nth root of B.) 阅读全文
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A regular palindrome is a string of numbers or letters that is the same forward as backward. For example, the string "ABCDEDCBA" is a palindrome becau 阅读全文
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We all know that FatMouse doesn't speak English. But now he has to be prepared since our nation will join WTO soon. Thanks to Turing we have computers 阅读全文
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Message queue is the basic fundamental of windows system. For each process, the system maintains a message queue. If something happens to this process 阅读全文
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Our school is planning to hold a new exciting computer programming contest. During each round of the contest, the competitors will be paired, and comp 阅读全文
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Jim is fond of reading books, and he has so many books that sometimes it's hard for him to manage them. So he is asking for your help to solve this pr 阅读全文
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FatMouse prepared M pounds of cat food, ready to trade with the cats guarding the warehouse containing his favorite food, JavaBean.The warehouse has N 阅读全文
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In the 22nd Century, scientists have discovered intelligent residents live on the Mars. Martians are very fond of mathematics. Every year, they would 阅读全文
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A boolean matrix has the parity property when each row and each column has an even sum, i.e. contains an even number of bits which are set. Here's a 4 阅读全文
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The daffodil number is one of the famous interesting numbers in the mathematical world. A daffodil number is a three-digit number whose value is equal 阅读全文
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One measure of ``unsortedness'' in a sequence is the number of pairs of entries that are out of order with respect to each other. For instance, in the 阅读全文
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Tom has a meadow in his garden. He divides it into N * M squares. Initially all the squares were covered with grass. He mowed down the grass on some o 阅读全文
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The image stored on a computer can be represented as a matrix of pixels. In the RGB (Red-Green-Blue) color system, a pixel can be described as a tripl 阅读全文
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The Antique Comedians of Malidinesia prefer comedies to tragedies. Unfortunately, most of the ancient plays are tragedies. Therefore the dramatic advi 阅读全文
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Your chemistry lab instructor is a very enthusiastic graduate student who clearly has forgotten what their undergraduate Chemistry 101 lab experience 阅读全文