03 2018 档案
摘要：Given a sequence of positive integers and another positive integer p. The sequence is said to be a "perfect sequence" if M <= m * p where M and m are
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摘要：Given a collection of number segments, you are supposed to recover the smallest number from them. For example, given {32, 321, 3214, 0229, 87}, we can
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摘要：Given any permutation of the numbers {0, 1, 2,..., N-1}, it is easy to sort them in increasing order. But what if Swap(0, *) is the ONLY operation tha
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摘要：The magic shop in Mars is offering some magic coupons. Each coupon has an integer N printed on it, meaning that when you use this coupon with a produc
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摘要：With highways available, driving a car from Hangzhou to any other city is easy. But since the tank capacity of a car is limited, we have to find gas s
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摘要：Mooncake is a Chinese bakery product traditionally eaten during the Mid-Autumn Festival. Many types of fillings and crusts can be found in traditional
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摘要：给定数字0-9各若干个。你可以以任意顺序排列这些数字，但必须全部使用。目标是使得最后得到的数尽可能小（注意0不能做首位）。例如：给定两个0，两个1，三个5，一个8，我们得到的最小的数就是10015558。 现给定数字，请编写程序输出能够组成的最小的数。 输入格式： 每个输入包含1个测试用例。每个测试
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摘要：Eva loves to collect coins from all over the universe, including some other planets like Mars. One day she visited a universal shopping mall which cou
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摘要：Given two strings S1 and S2, S = S1 - S2 is defined to be the remaining string after taking all the characters in S2 from S1. Your task is simply to c
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摘要：Being unique is so important to people on Mars that even their lottery is designed in a unique way. The rule of winning is simple: one bets on a numbe
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摘要：编程团体赛的规则为：每个参赛队由若干队员组成；所有队员独立比赛；参赛队的成绩为所有队员的成绩和；成绩最高的队获胜。 现给定所有队员的比赛成绩，请你编写程序找出冠军队。 输入格式： 输入第一行给出一个正整数N（<=10000），即所有参赛队员总数。随后N行，每行给出一位队员的成绩，格式为：“队伍编号-
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摘要：给定一个长度不超过10000的、仅由英文字母构成的字符串。请将字符重新调整顺序，按“PATestPATest....”这样的顺序输出，并忽略其它字符。当然，六种字符的个数不一定是一样多的，若某种字符已经输出完，则余下的字符仍按PATest的顺序打印，直到所有字符都被输出。 输入格式： 输入在一行中给
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摘要：请编写程序，找出一段给定文字中出现最频繁的那个英文字母。 输入格式： 输入在一行中给出一个长度不超过1000的字符串。字符串由ASCII码表中任意可见字符及空格组成，至少包含1个英文字母，以回车结束（回车不算在内）。 输出格式： 在一行中输出出现频率最高的那个英文字母及其出现次数，其间以空格分隔。如
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摘要：Eva would like to make a string of beads with her favorite colors so she went to a small shop to buy some beads. There were many colorful strings of b
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摘要：本题要求读入N名学生的成绩，将获得某一给定分数的学生人数输出。 输入格式： 输入在第1行给出不超过105的正整数N，即学生总人数。随后1行给出N名学生的百分制整数成绩，中间以空格分隔。最后1行给出要查询的分数个数K（不超过N的正整数），随后是K个分数，中间以空格分隔。 输出格式： 在一行中按查询顺序
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摘要：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、以及坏掉的那些键，打出的结果文字会是怎样？ 输入格式： 输入在2行中分别给出坏掉的那些键、以及应该输入的文字。其中对应英文字母的坏键以大写给出；每段文字是不超过105个字符的串。可用的字符包括字母[a-z,
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摘要：On a broken keyboard, some of the keys are worn out. So when you type some sentences, the characters corresponding to those keys will not appear on sc
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摘要：It is said that in 2013, there were about 100 graduate schools ready to proceed over 40,000 applications in Zhejiang Province. It would help a lot if
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摘要：Given a list of N student records with name, ID and grade. You are supposed to sort the records with respect to the grade in non-increasing order, and
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摘要：The ranklist of PAT is generated from the status list, which shows the scores of the submittions. This time you are supposed to generate the ranklist
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摘要：Forbes magazine publishes every year its list of billionaires based on the annual ranking of the world's wealthiest people. Now you are supposed to si
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摘要：Excel can sort records according to any column. Now you are supposed to imitate this function. Input Each input file contains one test case. For each
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摘要：A long-distance telephone company charges its customers by the following rules: Making a long-distance call costs a certain amount per minute, dependi
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摘要：There is a public bike service in Hangzhou City which provides great convenience to the tourists from all over the world. One may rent a bike at any s
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摘要：Weibo is known as the Chinese version of Twitter. One user on Weibo may have many followers, and may follow many other users as well. Hence a social n
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摘要：One way that the police finds the head of a gang is to check people's phone calls. If there is a phone call between A and B, we say that A and B is re
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摘要：A graph which is connected and acyclic can be considered a tree. The height of the tree depends on the selected root. Now you are supposed to find the
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摘要：It is vitally important to have all the cities connected by highways in a war. If a city is occupied by the enemy, all the highways from/toward that c
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摘要：A supply chain is a network of retailers（零售商）, distributors（经销商）, and suppliers（供应商）-- everyone involved in moving a product from supplier to customer
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摘要：A supply chain is a network of retailers（零售商）, distributors（经销商）, and suppliers（供应商）-- everyone involved in moving a product from supplier to customer
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摘要：To evaluate the performance of our first year CS majored students, we consider their grades of three courses only: C - C Programming Language, M - Mat
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摘要：The following is from Max Howell @twitter: Google: 90% of our engineers use the software you wrote (Homebrew), but you can't invert a binary tree on a
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摘要：Given an integer with no more than 9 digits, you are supposed to read it in the traditional Chinese way. Output "Fu" first if it is negative. For exam
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摘要：An inorder binary tree traversal can be implemented in a non-recursive way with a stack. For example, suppose that when a 6-node binary tree (with the
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摘要：About 900 years ago, a Chinese philosopher Sima Guang wrote a history book in which he talked about people's talent and virtue. According to his theor
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摘要：Suppose that all the keys in a binary tree are distinct positive integers. Given the postorder and inorder traversal sequences, you are supposed to ou
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摘要：One important factor to identify acute stroke (急性脑卒中) is the volume of the stroke core. Given the results of image analysis in which the core regions
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摘要：The Japanese language is notorious for its sentence ending particles. Personal preference of such particles can be considered as a reflection of the s
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摘要：The K-P factorization of a positive integer N is to write N as the sum of the P-th power of K positive integers. You are supposed to write a program t
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摘要：To prepare for PAT, the judge sometimes has to generate random passwords for the users. The problem is that there are always some confusing passwords
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摘要：Given a non-negative integer N, your task is to compute the sum of all the digits of N, and output every digit of the sum in English. Input Specificat
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摘要：Given a singly linked list L with integer keys, you are supposed to remove the nodes with duplicated absolute values of the keys. That is, for each va
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摘要：A linked list consists of a series of structures, which are not necessarily adjacent in memory. We assume that each structure contains an integer key
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摘要：To store English words, one method is to use linked lists and store a word letter by letter. To save some space, we may let the words share the same s
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摘要：Given a constant K and a singly linked list L, you are supposed to reverse the links of every K elements on L. For example, given L being 1→2→3→4→5→6,
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摘要：Mice and Rice is the name of a programming contest in which each programmer must write a piece of code to control the movements of a mouse in a given
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摘要：Given a stack which can keep M numbers at most. Push N numbers in the order of 1, 2, 3, ..., N and pop randomly. You are supposed to tell if a given s
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摘要：Calculate a + b and output the sum in standard format -- that is, the digits must be separated into groups of three by commas (unless there are less t
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摘要：本题要求实现一种数字加密方法。首先固定一个加密用正整数A，对任一正整数B，将其每1位数字与A的对应位置上的数字进行以下运算：对奇数位，对应位的数字相加后对13取余——这里用J代表10、Q代表11、K代表12；对偶数位，用B的数字减去A的数字，若结果为负数，则再加10。这里令个位为第1位。 输入格式：
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摘要：Scientific notation is the way that scientists easily handle very large numbers or very small numbers. The notation matches the regular expression [+-
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摘要：Sherlock Holmes received a note with some strange strings: "Let's date! 3485djDkxh4hhGE 2984akDfkkkkggEdsb s&hgsfdk d&Hyscvnm". It took him only a min
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摘要：给定一句英语，要求你编写程序，将句中所有单词的顺序颠倒输出。 输入格式：测试输入包含一个测试用例，在一行内给出总长度不超过80的字符串。字符串由若干单词和若干空格组成，其中单词是由英文字母（大小写有区分）组成的字符串，单词之间用1个空格分开，输入保证句子末尾没有多余的空格。 输出格式：每个测试用例的
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摘要：读入一个自然数n，计算其各位数字之和，用汉语拼音写出和的每一位数字。 输入格式：每个测试输入包含1个测试用例，即给出自然数n的值。这里保证n小于10100。 输出格式：在一行内输出n的各位数字之和的每一位，拼音数字间有1 空格，但一行中最后一个拼音数字后没有空格。 输入样例： 12345678909
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摘要：一个合法的身份证号码由17位地区、日期编号和顺序编号加1位校验码组成。校验码的计算规则如下： 首先对前17位数字加权求和，权重分配为：{7，9，10，5，8，4，2，1，6，3，7，9，10，5，8，4，2}；然后将计算的和对11取模得到值Z；最后按照以下关系对应Z值与校验码M的值： Z：0 1 2
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摘要：让我们用字母B来表示“百”、字母S表示“十”，用“12...n”来表示个位数字n（<10），换个格式来输出任一个不超过3位的正整数。例如234应该被输出为BBSSS1234，因为它有2个“百”、3个“十”、以及个位的4。 输入格式：每个测试输入包含1个测试用例，给出正整数n（<1000）。 输出格式
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摘要：If you are a fan of Harry Potter, you would know the world of magic has its own currency system -- as Hagrid explained it to Harry, "Seventeen silver
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摘要：People in Mars represent the colors in their computers in a similar way as the Earth people. That is, a color is represented by a 6-digit number, wher
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摘要：A number that will be the same when it is written forwards or backwards is known as a Palindromic Number. For example, 1234321 is a palindromic number
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摘要：如果你是哈利·波特迷，你会知道魔法世界有它自己的货币系统 —— 就如海格告诉哈利的：“十七个银西可(Sickle)兑一个加隆(Galleon)，二十九个纳特(Knut)兑一个西可，很容易。”现在，给定哈利应付的价钱P和他实付的钱A，你的任务是写一个程序来计算他应该被找的零钱。 输入格式： 输入在1行
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摘要：Given any string of N (>=5) characters, you are asked to form the characters into the shape of U. For example, "helloworld" can be printed as: That is
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摘要：A traveler's map gives the distances between cities along the highways, together with the cost of each highway. Now you are supposed to write a progra
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摘要：本题要求你写个程序把给定的符号打印成沙漏的形状。例如给定17个“*”，要求按下列格式打印 所谓“沙漏形状”，是指每行输出奇数个符号；各行符号中心对齐；相邻两行符号数差2；符号数先从大到小顺序递减到1，再从小到大顺序递增；首尾符号数相等。 给定任意N个符号，不一定能正好组成一个沙漏。要求打印出的沙漏能
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摘要：美国总统奥巴马不仅呼吁所有人都学习编程，甚至以身作则编写代码，成为美国历史上首位编写计算机代码的总统。2014年底，为庆祝“计算机科学教育周”正式启动，奥巴马编写了很简单的计算机代码：在屏幕上画一个正方形。现在你也跟他一起画吧！ 输入格式： 输入在一行中给出正方形边长N（3<=N<=20）和组成正方
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摘要：This time you are asked to tell the difference between the lowest grade of all the male students and the highest grade of all the female students. Inp
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摘要：At the beginning of every day, the first person who signs in the computer room will unlock the door, and the last one who signs out will lock the door
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摘要：With the 2010 FIFA World Cup running, football fans the world over were becoming increasingly excited as the best players from the best teams doing ba
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摘要：为了用事实说明挖掘机技术到底哪家强，PAT组织了一场挖掘机技能大赛。现请你根据比赛结果统计出技术最强的那个学校。 输入格式： 输入在第1行给出不超过105的正整数N，即参赛人数。随后N行，每行给出一位参赛者的信息和成绩，包括其所代表的学校的编号（从1开始连续编号）、及其比赛成绩（百分制），中间以空格
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摘要：某城镇进行人口普查，得到了全体居民的生日。现请你写个程序，找出镇上最年长和最年轻的人。 这里确保每个输入的日期都是合法的，但不一定是合理的——假设已知镇上没有超过200岁的老人，而今天是2014年9月6日，所以超过200岁的生日和未出生的生日都是不合理的，应该被过滤掉。 输入格式： 输入在第一行给出
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摘要：读入n名学生的姓名、学号、成绩，分别输出成绩最高和成绩最低学生的姓名和学号。 输入格式：每个测试输入包含1个测试用例，格式为 其中姓名和学号均为不超过10个字符的字符串，成绩为0到100之间的一个整数，这里保证在一组测试用例中没有两个学生的成绩是相同的。 输出格式：对每个测试用例输出2行，第1行是成
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摘要：每个PAT考生在参加考试时都会被分配两个座位号，一个是试机座位，一个是考试座位。正常情况下，考生在入场时先得到试机座位号码，入座进入试机状态后，系统会显示该考生的考试座位号码，考试时考生需要换到考试座位就座。但有些考生迟到了，试机已经结束，他们只能拿着领到的试机座位号码求助于你，从后台查出他们的考试
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摘要：This time, you are supposed to find A*B where A and B are two polynomials. Input Specification: Each input file contains one test case. Each case occu
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摘要：Given three integers A, B and C in [-263, 263], you are supposed to tell whether A+B > C. Input Specification: The first line of the input gives the p
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摘要：The task is really simple: given N exits on a highway which forms a simple cycle, you are supposed to tell the shortest distance between any pair of e
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摘要：Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid "ins
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摘要：As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some ro
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