Shannon-Nansen

Description Periodic Strings A character string is said to have period k if it can be formed by concatenating one or more repetitions of another string of length k. For examp

Description Squares A children's board game consists of a square array of dots that contains lines connecting some of the pairs of adjacent dots. One part of the game req

Description  Morse Mismatches Samuel F. B. Morse is best known for the coding scheme that carries his name. Morse code is still used in international radio communication.

DescriptionWhen a student is too tired, he can't help sleeping in class, even if his favorite teacher is right here in front of him. Imagine you have a class of extraordinarily tired students,

DescriptionAlex is administrator of IP networks. His clients have a bunch of individual IP addresses and he decided to group all those IP addresses into the smallest possible IP network.Each

DescriptionIvan works at a factory that produces heavy machinery. He has a simple job -- he knocks up wooden boxes of different sizes to pack machinery for delivery to the customers. Each box

DescriptionFloating-point numbers are represented differently in computers than integers. That is why a 32-bit floating-point number can represent values in the magnitude of 1038 while a 32-

DescriptionAll in AllYou have devised a new encryption technique which encodes a message by inserting between its characters randomly generated strings in a clever way. Because of pendin

Description Figure 1.DNA (Deoxyribonucleic Acid) is the molecule which contains the genetic instructions. It consists of four different nucleotides, namely Adenine, Thymine, Guanine, and Cyt

DescriptionA research laboratory of a world-leading automobile company has received an order to create a special transmission mechanism, which allows for incredibly efficient kickdown -- an op

DescriptionThe decimal expansion of the fraction 1/33 is  , where the  is used to indicate that the cycle 03 repeats indefinitely with no intervening digits. In fact, the decimal exp

DescriptionA crossword puzzle consists of a rectangular grid of black and white squares and two lists of definitions (or descriptions).One list of definitions is for ``words" to be written lef

DescriptionA children's puzzle that was popular 30 years ago consisted of a 5x5 frame which contained 24 small squares of equal size. A unique letter of the alphabet was printed on each smal

DescriptionAn organic compound is any member of a large class of chemical compounds whose molecules contain carbon. The molar mass of an organic compound is the mass of one mole of the organ

DescriptionThere is an objective test result such as ``OOXXOXXOOO". An `O' means a correct answer of a problem and an `X' means a wrong answer. The score of each problem of this test is calcul

DescriptionTrung is bored with his mathematics homeworks. He takes a piece of chalk and starts writing a sequence of consecutive integers starting with 1 to N(1 N  . After that, he counts th

Description Cube painting We have a machine for painting cubes. It is supplied with three different colors: blue, red and green. Each face of the cube gets one of these c