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A + B Problem IIProblem DescriptionI have a very simple problem for you. Given two integers A and B, your job is to calculate the Sum of A + B. InputThe first line of the input contains an i

Number SequenceProblem DescriptionA number sequence is defined as follows:f(1) = 1, f(2) = 1, f(n) = (A * f(n - 1) + B * f(n - 2)) mod 7.Given A, B, and n, you are to calculate the value o

The Hardest Problem EverProblem DescriptionJulius Caesar lived in a time of danger and intrigue. The hardest situation Caesar ever faced was keeping himself alive. In order for him to survive, he

A+B for Input-Output Practice (VII)Problem DescriptionYour task is to Calculate a + b. InputThe input will consist of a series of pairs of integers a and b, separated by a space, one pair of

不容易系列之(3)—— LELE的RPG难题Problem Description人称“AC女之杀手”的超级偶像LELE最近忽然玩起了深沉，这可急坏了众多“Cole”（LELE的粉丝,即"可乐"）,经过多方打探，某资深Cole终于知道了原因，原来，LELE最近研究起了著名的RPG难题:有排成一行的ｎ个方格，用红(Red)、粉(Pink)、绿(Green)三色涂每个格子，每格涂一色，要求

骨牌铺方格在2×n的一个长方形方格中,用一个1× 2的骨牌铺满方格,输入n ,输出铺放方案的总数.例如n=3时,为2× 3方格，骨牌的铺放方案有三种,如下图：Input输入数据由多行组成，每行包含一个整数n,表示该测试实例的长方形方格的规格是2×n (0 Output对于每个测试实例，请输出铺放方案的总数，每个实例的输出占一行。 Sample Input

Tree RecoveryDescriptionLittle Valentine liked playing with binary trees very much. Her favorite game was constructing randomly looking binary trees with capital letters in the nodes. This is

Ancient CipherDescriptionAncient Roman empire had a strong government system with various departments, including a secret service department. Important documents were sent between provinces and

Integer InquiryDescriptionOne of the first users of BIT's new supercomputer was Chip Diller. He extended his exploration of powers of 3 to go from 0 to 333 and he explored taking various sums of

Moving TablesDescriptionThe famous ACM (Advanced Computer Maker) Company has rented a floor of a building whose shape is in the following figure. The floor has 200 rooms each on the north si

DNA SortingDescriptionOne 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 letter sequence ``DAA

Sum of Consecutive Prime NumbersDescriptionSome positive integers can be represented by a sum of one or more consecutive prime numbers. How many such representations does a given positive intege

Dirichlet's Theorem on Arithmetic ProgressionsDescriptionIf a and d are relatively prime positive integers, the arithmetic sequence beginning with a and increasing by d, i.e., a, a + d, a + 2d,

HumidexDescriptionAdapted from Wikipedia, the free encyclopediaThe humidex is a measurement used by Canadian meteorologists to reflect the combined effect of heat and humidity. It differs from t

Goldbach's ConjectureDescriptionIn 1742, Christian Goldbach, a German amateur mathematician, sent a letter to Leonhard Euler in which he made the following conjecture: Every even number greate

Nasty HacksDescriptionYou are the CEO of Nasty Hacks Inc., a company that creates small pieces of malicious software which teenagers may use to fool their friends. The company has just finis

Rabbit huntDescriptionA good hunter kills two rabbits with one shot. Of course, it can be easily done since for any two points we can always draw a line containing the both. But killing three

Color Me LessDescriptionA color reduction is a mapping from a set of discrete colors to a smaller one. The solution to this problem requires that you perform just such a mapping in a standard

A+B for Input-Output Practice (V)Problem DescriptionYour task is to calculate the sum of some integers. InputInput contains an integer N in the first line, and then N lines follow. Each line

A+B for Input-Output Practice (III)Problem DescriptionYour task is to Calculate a + b. InputInput contains multiple test cases. Each test case contains a pair of integers a and b, one pair o

The areaProblem DescriptionIgnatius bought a land last week, but he didn't know the area of the land because the land is enclosed by a parabola and a straight line. The picture below shows the are

A+B for Input-Output Practice (I)Problem DescriptionYour task is to Calculate a + b.Too easy?! Of course! I specially designed the problem for acm beginners. You must have found that some prob

A+B for Input-Output Practice (II)Problem DescriptionYour task is to Calculate a + b. InputInput contains an integer N in the first line, and then N lines follow. Each line consists of a pai

A+B for Input-Output Practice (IV)Problem DescriptionYour task is to Calculate the sum of some integers. InputInput contains multiple test cases. Each test case contains a integer N, and the

A+B for Input-Output Practice (VI)Problem DescriptionYour task is to calculate the sum of some integers. InputInput contains multiple test cases, and one case one line. Each case starts with

A+B for Input-Output Practice (VIII)Problem DescriptionYour task is to calculate the sum of some integers. InputInput contains an integer N in the first line, and then N lines follow. Each l

不容易系列之一Problem Description大家常常感慨，要做好一件事情真的不容易，确实，失败比成功容易多了！做好“一件”事情尚且不易，若想永远成功而总从不失败，那更是难上加难了，就像花钱总是比挣钱容易的道理一样。话虽这样说，我还是要告诉大家，要想失败到一定程度也是不容易的。比如，我高中的时候，就有一个神奇的女生，在英语考试的时候，竟然把40个单项选择题全部做错了！大家都学

不容易系列之二Problem Description你活的不容易，我活的不容易，他活的也不容易。不过，如果你看了下面的故事，就会知道，有位老汉比你还不容易。重庆市郊黄泥板村的徐老汉（大号徐东海，简称XDH）这两年辛辛苦苦养了不少羊，到了今年夏天，由于众所周知的高温干旱，实在没办法解决牲畜的饮水问题，就决定把这些羊都赶到集市去卖。从黄泥板村到交易地点要经过N个收费站，按说这收费站和徐老汉

不容易系列之(4)——考新郎国庆期间,省城HZ刚刚举行了一场盛大的集体婚礼,为了使婚礼进行的丰富一些,司仪临时想出了有一个有意思的节目,叫做"考新郎",具体的操作是这样的:首先,给每位新娘打扮得几乎一模一样,并盖上大大的红盖头随机坐成一排;然后,让各位新郎寻找自己的新娘.每人只准找一个,并且不允许多人找一个.最后,揭开盖头,如果找错了对象就要当众跪搓衣板...看来做新郎也不是容

折线分割平面Problem Description我们看到过很多直线分割平面的题目，今天的这个题目稍微有些变化，我们要求的是n条折线分割平面的最大数目。比如，一条折线可以将平面分成两部分，两条折线最多可以将平面分成7部分，具体如下所示。Input输入数据的第一行是一个整数C,表示测试实例的个数，然后是C 行数据，每行包含一个整数n(0Output对于每个测试实例，请

A+B ProblemDescriptionCalculate a+bInputTwo integer a,b (0OutputOutput a+bSample Input1 2Sample Output3HintQ: Where are the input and the output? A: Your prog

HangoverDescriptionHow far can you make a stack of cards overhang a table? If you have one card, you can create a maximum overhang of half a card length. (We're assuming that the cards must be p

Financial ManagementDescriptionLarry graduated this year and finally has a job. He's making a lot of money, but somehow never seems to have enough. Larry has decided that he needs to grab hold o

I Think I Need a HouseboatDescriptionFred Mapper is considering purchasing some land in Louisiana to build his house on. In the process of investigating the land, he learned that the state of Lo

A + B ProblemProblem DescriptionCalculate A + B. InputEach line will contain two integers A and B. Process to end of file. OutputFor each case, output A + B in one line. Sample Inp

Sum ProblemProblem DescriptionHey, welcome to HDOJ(Hangzhou Dianzi University Online Judge).In this problem, your task is to calculate SUM(n) = 1 + 2 + 3 + ... + n. InputThe input will con

ElevatorProblem DescriptionThe highest building in our city has only one elevator. A request list is made up with N positive numbers. The numbers denote at which floors the elevator will stop, i

Integer InquiryProblem DescriptionOne of the first users of BIT's new supercomputer was Chip Diller. He extended his exploration of powers of 3 to go from 0 to 333 and he explored taking various s

The 3n + 1 problemDescriptionProblems in Computer Science are often classified as belonging to a certain class of problems (e.g., NP, Unsolvable, Recursive). In this problem you will be analyz