Solved

Compute the perimeter of an ellipse
While the area of an ellipse is straightforward to compute, the perimeter (or circumference) is more complicated. The perimeter ...

15 days ago

Solved

List mean-of-2 primes
The prime number 53 is the average of the first prime before it (47) and the first prime after it (59), and the prime number 11 ...

15 days ago

Solved

chess position
given the position of a chess piece in algebric notation, convert it into 8 by 8 matrix format. For example, * 'Qd5' >> [3,4]...

15 days ago

Solved

Count the ways pairs of parentheses can be matched correctly

15 days ago

Solved

Yoonir - 02
Find the area of a six-pointed star inscribed in a circle of radius r.

15 days ago

Solved

Determine whether one vector is a subset of another
While bumbling through a pair of problems in the Number Theory group, I wrote code to determine whether a vector is a subset of ...

15 days ago

Solved

Tell your secret
A secret can be told only to 2 persons in 5 minutes. Now, these 2 more persons can spread the secret to 4 other people in the ne...

15 days ago

Solved

Two functions (to be sure)
I want to compute the number of odd/even numbers in an array. But I want the results by two different functions. Example: ...

15 days ago

Solved

Area-03
There are two circles of equal size are inscribed inside a square. They are tangent to each other. <https://serving.photos.ph...

15 days ago

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Moving average
A moving average function that returns an array that is equal in length to the input arrays (which can be row or column) A va...

15 days ago

Solved

Nth Order Polynomial Regression
Inputs: -two vectors x and y (row or column) -order of polynomial, p Outputs: -vector of coefficients [b0 b...

15 days ago

Solved

GJam 2014 China Rd A: Library Sorting (Large)
This Challenge is derived from <http://code.google.com/codejam/contest/2924486/dashboard#s=p2 GJam 2014 China Sorting>. Subset ...

15 days ago

Solved

Move Array Element by Offset with Optional Ring Mode
Move Element by Offset Write a function moveab(x, A, B, option) that moves the element at index A in array x by B positions. P...

15 days ago

Solved

GJam 2017 Kickstart: Parentheses (Large)
This Challenge is derived from <http://code.google.com/codejam/contest/6304486/dashboard#s=p2 GJam 2017 Kickstart Parentheses>. ...

15 days ago

Solved

How to reverse spdiags?
The spdiags function extracts all nonzero diagonals from the m-by-n matrix A. So if A=[1 2 3;4 5 6;7 8 9], spdiags(A)=[7 4...

16 days ago

Solved

Pancake sorting - minimum flips.
Sort a stack of pancakes by flipping them using spatula. There are N pancakes with diameters 1:N. Spatula can be inserted anyw...

16 days ago

Solved

Pancake sorting
Sort a stack of pancakes by flipping them using spatula. * There are _N_ pancakes with diameters _1:N_. * Spatula can be ins...

16 days ago

Solved

Rearrange the given matrix to have all its zeros climb up to the top of each column - using for loops.
Given a matrix x, *using loops only* return a matrix y, in which all the zeros have "climbed" up to the top. That is, any zeros ...

16 days ago

Solved

Given a matrix A (size m x n) create a matrix B which consists of matrix A sorted in descending order by columns and then by rows.
--------------- A= [ 2 6 -3 7 12 0 -12 5 1] --------------- B= [12 7 1 6 2 0 5 -3 ...

16 days ago

Solved

feeling VERY lucky?
Just like Matthew's problem 2793 and Edward's problem 2872 (guess the number that Cody is thinking) but now you must solve it in...

16 days ago

Solved

the proud tradition of zero scores in Cody
The short version is: *_your function should return a zero and also have a zero score/size_* The long version comes with a li...

16 days ago

Solved

singularity 2.0 (really hard)
This problem is the continuation of problem <http://www.mathworks.com/matlabcentral/cody/problems/1770-singularity-2-0-harder Si...

16 days ago

Solved

singularity 2.0 (hard)
This problem is the continuation of problem <http://www.mathworks.com/matlabcentral/cody/problems/1769-singularity-2-0-easier Si...

16 days ago

Solved

singularity 2.0 (easier)
If you have been in Cody long enough you have probably run across some badly constructed problems and test suites. This prob...

16 days ago

Solved

Now!
I said now!

16 days ago

Solved

Leave a thumb-up to pass
Just leave a Like, and a comment if you wish. Then wait, and submit.

16 days ago

Solved

Get me! v3
A harder version of Get me! I *think* I only left one door open.. we could be close to a perfect anti-cheating engine,

16 days ago

Solved

Get me! v2
Exploiting cody v2

16 days ago

Solved

Get me!
Inspired by Now! problems. Do your best!

16 days ago

Solved

What? Paradox?
What's going on here?

16 days ago