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You work for a company which uses lots of personal computers. Your boss, Dr Penny Pincher, has wanted to link the computers together for some time but has been unwilling to spend any money on the Ethe

3209: 矩阵输出Time Limit: 1 Sec  Memory Limit: 128 MBSubmit: 43  Solved: 21[Submit][Status][Web Board]Description输入n个整数，输出由这些整数组成的n行矩阵。Input第一行输入一个正整数N（N<=20），表示后面要输入的整数个数。下面依次输入N个整数。Output以输入的整数为基础，输出...

Recall the definition of the Fibonacci numbers: f1 := 1 f2 := 2 fn := fn-1 + fn-2 (n >= 3) Given two numbers a and b, calculate how many Fibonacci numbers are in the range [a, b]. InputThe ...

In the 22nd Century, scientists have discovered intelligent residents live on the Mars. Martians are very fond of mathematics. Every year, they would hold an Arithmetic Contest on Mars (ACM). The t...

A common error in programming is to use variables that have not been initialized before. For example, in C and C++, all variables have an indefinite value after declaration - their value can be anythi

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 problem. Only interest in the name, press year and

Romeo and Juliet are college students in the city of Verona and are in love with each other. Unfortunately, both their families are not very glad with this fact. They are trying to prevent any attempt

It's easy to tell if two words are identical - just check the letters. But how do you tell if two words are almost identical? And how close is "almost"? There are lots of techniques for approximate

Mathematics can be so easy when you have a computer. Consider the following example. You probably know that in a right-angled triangle, the length of the three sides a, b, c (where c is the longest si

High on the wall of the church tower in a small village in Transylvania is an analog clock. It has an hour hand and a minute hand and a conventional 12-hour dial. The clock's mechanism advances both h

A mining base needs to build some robots to collect at least 10000 units of resource. Each robot will start from the base, reach the diggings in S minutes, work for W minutes, and then take C units of

Maybe you are familiar with the following situation. You have plugged in a lot of electrical devices, such as toasters, refrigerators, microwave ovens, computers, stereos, etc, and have them all runni

We all love recursion! Don't we? Consider a three-parameter recursive function w(a, b, c): if a 1 if a > 20 or b > 20 or c > 20, then w(a, b, c) returns: w(20, 20, 20) if a w(a, b, c-

Trees are fundamental in many branches of computer science. Current state-of-the art parallel computers such as Thinking Machines' CM-5 are based on fat trees. Quad- and octal-trees are fundamenta...