Gelöst

Person of interest?
given a person_of_interest, what is his_name?

etwa 12 Jahre vor

Gelöst

middleAsColumn: Return all but first and last element as a column vector
Given input A, return all but the first and last elements, arranged as a column vector. (I.e., all dimensions after the first s...

etwa 12 Jahre vor

Gelöst

Infernal Recursion
Consider the recursion relation: x_n = (x_(n-1)*x_(n-2))^k Given x_1, x_2, and k, x_n can be found by this definition. Wr...

etwa 12 Jahre vor

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Rosenbrock's Banana Function and its derivatives
Write a function to return the value of <http://en.wikipedia.org/wiki/Rosenbrock_function Rosenbrock's two-dimensional banana fu...

etwa 12 Jahre vor

Gelöst

Trickier Timing
You solution should return control to main program only when the current time ends in either a 5 or 0 (e.g. the current seconds ...

etwa 12 Jahre vor

Gelöst

Eight Queens Solution Checker
Write a function to verify whether an arrangement of queens on a chessboard is a valid solution to the classic <http://en.wikipe...

etwa 12 Jahre vor

Gelöst

Minefield Sonar
*Background* In mine-hunting games (e.g. Microsoft Minesweeper), the user is provided with a covered grid that, upon a left c...

etwa 12 Jahre vor

Gelöst

Mersenne Primes
A Mersenne prime is a prime number of the form M = 2^p - 1, where p is another prime number. For example, 31 is a Mersenne prim...

etwa 12 Jahre vor

Gelöst

Test if a Number is a Palindrome without using any String Operations
*Description* Given an integer _X_, determine if it is a palindrome number. That is, _X_ is equal to the _X_ with the digits ...

etwa 12 Jahre vor

Gelöst

Better bullseye matrix
<http://www.mathworks.com/matlabcentral/cody/problems/18-bullseye-matrix Problem 18> asks to create a bullseye matrix like this:...

etwa 12 Jahre vor

Gelöst

Wilf-Zeilberger pairs
Take as inputs two functions _F_ and _G_, and two scalar values _n_ and _k_. Test whether the functions are candidates to be a W...

etwa 12 Jahre vor

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Parasitic numbers
Test whether the first input x is an n-parasitic number: <http://en.wikipedia.org/wiki/Parasitic_number>. ( _n_ is the second in...

etwa 12 Jahre vor

Gelöst

Kaprekar numbers
Test if the input is a Kaprekar number: <http://mathworld.wolfram.com/KaprekarNumber.html>. Return a logical true or false. ...

etwa 12 Jahre vor

Gelöst

Cubic Integer Constrained Solution
Find an integral non-trivial solution (x,y,z ~=0) (x=0 or y=0 or z=0 are trivial) for the cubic equation 987,654,321x + 12...

etwa 12 Jahre vor

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Uniform binary crossover
Given two binary vectors, return the two children by combining the genes of them using a binary crossover mask. More informat...

etwa 12 Jahre vor

Gelöst

Spherical radius given four points
Determine the radius of a sphere provided four non-coplanar points on the surface of the sphere. pts = [x1 y1 z1; x...

etwa 12 Jahre vor

Gelöst

Volume of a Parallelepiped
Calculate the volume of a Parallelepiped given the vectors for three edges that meet at one vertex. A cube is a special case ...

etwa 12 Jahre vor

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Angle between Two Vectors
The dot product relationship, a dot b = | a | | b | cos(theta), can be used to determine the acute angle between vector a and ve...

etwa 12 Jahre vor

Gelöst

Make blocks of color
Given a (Nx3) sequence of RGB colors, I want to create a (numRowBlocks x numColBlocks x 3) image comprising (blockSize x blockSi...

etwa 12 Jahre vor

Gelöst

First non-zero element in each column
For a given matrix, calculate the index of the first non-zero element in each column. Assuming a column with all elements zero ...

etwa 12 Jahre vor

Gelöst

More luck than brains
Give a random function that guess and return numbers from 1 to 6 exactly like the test suite .

etwa 12 Jahre vor

Gelöst

The Birthday Phenomenon
First off, leap years are not being considered for this. In fact the year that people are born shouldn't be taken into considera...

etwa 12 Jahre vor

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Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.

etwa 12 Jahre vor

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Compute a dot product of two vectors x and y
x and y are input vectors, d is a number and contains their dot product

etwa 12 Jahre vor

Gelöst

Woodall number
Test whether the input is a Woodall number: <http://en.wikipedia.org/wiki/Woodall_number> _Please do not cheat by simply chec...

etwa 12 Jahre vor

Gelöst

2 b | ~ 2 b
Given a string input, output true if there are 2 b's in it, false if otherwise Examples: 'Macbeth' -> false 'Publius Cor...

etwa 12 Jahre vor

Gelöst

Make a simplified barcode
Given an integer to encode, make a barcode using the following encoding scheme: * The bar code is made from the binary versio...

etwa 12 Jahre vor

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Compress strings (not springs)
Please remove excess space, limit one space between others, and no space before punctuation marks. * For example, 'Trendy , ...

etwa 12 Jahre vor

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Wind outward from the center ...
Create an n-by-n matrix with elements ranging from 1 to n^2 in a rectangular spiral pattern. Example if n = 5 : 21 ...

etwa 12 Jahre vor

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Rotate a Matrix
Input a Matrix x, Output y is the matrix rotating x 90 degrees clockwise

etwa 12 Jahre vor