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Stairs
Make an n by n matrix, where the elements are ones and zeros. In the main diagonal, and under that, there should be only ones (...

environ un an ago

Solved

Square
X is a number, write a code, where Y should be the square of X.

environ un an ago

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Matrix problem for beginners
Make a matrix [0,0,0;1,1,1;2,2,2]. X=[0,1,2]

environ un an ago

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Find Pseudo-Cyclic Number
A cyclic number is an integer in which cyclic permutations of the digits are successive multiples of the number https://en.wikip...

environ un an ago

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Area of rhombus
Calculate the rhombus area

environ un an ago

Solved

Optimum Egyptian Fractions
Following problem was inspired by <http://www.mathworks.com/matlabcentral/cody/problems/2126-split-bread-like-the-pharaohs-egypt...

plus d'un an ago

Solved

Pandigital number n°3 (Inspired by Project Euler 32)
After Problem 2319 and 2320. An n-digit number is pandigital if it makes use of all the digits 1 to n exactly ONCE. For examp...

plus d'un an ago

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Square root
Given x (a matrix), give back another matrix, where all the elements are the square roots of x's elements.

plus d'un an ago

Solved

Bridge and Torch Problem - Minimum time
<https://en.wikipedia.org/wiki/Bridge_and_torch_problem Details of the problem ...> Input is crossing time list. (for exampl...

plus d'un an ago

Solved

find

plus d'un an ago

Solved

Multiplying

plus d'un an ago

Solved

divide by 5

plus d'un an ago

Solved

Solve a ballot counting problem

plus d'un an ago

Solved

Matrix for beginners
Multiply x and y elemwise.

plus d'un an ago

Solved

Moving Product (Easy)
Given an input array A, write a function *movprod(A,k,dim)* to calculate the moving product over a sliding window of length *k* ...

plus d'un an ago

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RISK Calculator - Large Armies, High Accuracy, Fast
This Challenge is to quickly provide the high precision probability of legal RISK battles up to 100 vs 100. [ Attack >= 2 and D...

plus d'un an ago

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Create a matrix map of increasing safety levels
The sole nuclear power plant at Grid City suddenly had a meltdown. Luckily, the plant was designed to be in full automation, so ...

plus d'un an ago

Solved

Count the number of folds needed to pack a large sheet
In a certain paper factory, large sheets of paper are being made every day. Before sending the sheets for shipment, they have to...

plus d'un an ago

Solved

Convert a temperature reading from Celsius to an unknown scale
Two of the most famous temperature scales are the Celsius and the Fahrenheit scale. In reality, however, there are so many other...

plus d'un an ago

Solved

leap year
find the number of leap years within the given time interval

plus d'un an ago

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Friday or not
I love Friday. Please tell me whether the day is Friday. Dateformat is 'yyyy-mm-dd' or 'dd-mmm-yyyy' or 'mm/dd/yyyy'. Exa...

plus d'un an ago

Solved

Count the days
Count the occurrence of a particular day (e.g. Monday) in a given year.

plus d'un an ago

Solved

Exponentiation
Given 3 integers b,e,k; find -- mod(b^e,k)

plus d'un an ago

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Sieve of Eratosthenes - 02
"Sift the Two's and Sift the Three's, The Sieve of Eratosthenes. When the multiples sublime, The numbers that remain a...

plus d'un an ago

Solved

Projector Matrix
Write a function to determine whether or not the matrix is a projector. Projector matrices are defined as P^2 = P.

plus d'un an ago

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Sky full of stars - 03
draw the following pattern with asterisks. For example, for n=6 '************' '***** *****' '**** ****' ...

plus d'un an ago

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Sky full of stars - 02
draw an isosceles triangle with asterisks of size n. For example, for n=6 ' * ' ' *** ' ' **...

plus d'un an ago

Solved

Sky full of stars - 01
Draw a right triangle with asterisks of size n. For example, for n=5 '* ' '** ' '*** ' '**** ' ...

plus d'un an ago

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Calculate the square root of a number
Input a Output b = srt(a)

plus d'un an ago

Solved

Rescale Scores
Each column (except last) of matrix |X| contains students' scores in a course assignment or a test. The last column has a weight...

plus d'un an ago