Solved

Find the nearest admirable number
Cody Problems 1012 and 2544 ask us to determine whether a number is perfect—that is, whether the sum of divisors is equal to ....

13 days ago

Solved

Input & Output "Smart One"
If i give my secret function a x value as input the result will be y value as output. Examples: input: x=6 ----->>> output: ...

14 days ago

Solved

Hoax Numbers
A Hoax Number (OEIS A019506) is defined as a composite number, whose sum of digits is equal to the sum of digits of its distinct...

14 days ago

Solved

Construct a continued fraction for a square root

14 days ago

Solved

Permute the unique values of a vector without sorting
Given a vector A, return the matrix B, wherein each row contains a permutation of the unique values in original vector while ret...

15 days ago

Solved

Remove Missing Values from a Table or an Array
Remove missing entries from an array or table. If A is a vector, then remove any entry that contains missing data. If A is a mat...

15 days ago

Solved

5-year Annedversaries
This is the Bonus Round problem for the 2025 Cody Contest. Attend the watch party on Friday, March 27 to see how 6 champions fro...

15 days ago

Solved

Is this function available?
Sometimes it is difficult to remember which functions are not allowed on the Cody platform. Given a function as a string, return...

16 days ago

Solved

Calculate triangle area
Imagine that you want to calculate the areas of some triangles given in matrix form. First the coordinates of the vertices of th...

16 days ago

Solved

i was a mistake

16 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...

16 days ago

Solved

Area-04
The dimension of a rectangle is given. There are two circles of equal size that are inscribed inside it.The circles are tangent ...

16 days ago

Solved

Turn year differences into "s score and y years ago"
President Lincoln opened his now-legendary Gettysburg Address with the famous words "Four score and seven years ago...". Given t...

16 days ago

Solved

Time and Variable mapping and matching
There is a 6X5 cell array where * 1st column represents time values * 2nd and 3rd column represent variables and their value...

18 days ago

Solved

Neural Net: Best Index of Prediction array
The final ouput of a neural net application is a Prediction matrix/vector,P, that gives the probability of the input being of a ...

18 days ago

Solved

Set the Euler-Mascheroni constant with an identity using available MATLAB functions
Cody Problem <https://www.mathworks.com/matlabcentral/cody/problems/42826 42826> asked us to estimate the <https://en.wikipedia....

18 days ago

Solved

Cross ("+") flag returns
Given two numbers, [m, n], return a matrix of size m x n which has all elements of the centre column and centre row set as 1, an...

18 days ago

Solved

Successive zeros
Suppose n is the number of digits a number contains. Now, 12032 - is a valid n=5 digit number. But 10023 - is defined as i...

18 days ago

Solved

Sort Reversal
There are n index cards in a row, with n distinct integers written on them (one number per card) so that the numbers are sorted ...

18 days ago

Solved

Find two numbers that add up to the target value
Given a vector A and target n, return the indices of two numbers that add up to n. If there are multiple solutions, return the f...

18 days ago

Solved

REPMAT Enhancement - Faster for Large Row Replication of Vector
The Challenge is to modify repmat.m to maintain all of its normal functionality and enhance its performance for large row replic...

18 days ago

Solved

AVIRIS Hyperspectral Bit Mask
The AVIRIS data sometimes is provided uncropped. This creates edge regions with values of "-50". Shown is AVIRIS Moffett Field i...

18 days ago

Solved

Get input and output variable names
Given a string representing a function header, return the variable names used for the inputs and outputs. For example if input ...

18 days ago

Solved

GJam 2013 Veterans: Ocean View (Small)
This Challenge is derived from <http://code.google.com/codejam/contest/2334486/dashboard#s=p2 GJam 2013 Veterans Ocean View>. Th...

18 days ago

Solved

Implement Solitaire cipher for N long deck.
Implement the <http://en.wikipedia.org/wiki/Solitaire_(cipher) solitaire cypher>. Given a starting permutation of numbers [1:...

18 days ago

Solved

Gaussian elimination
Get the Gussian elimination of the Matrix Given You cannot use built-in Matlab functions triu :)

18 days ago

Solved

Area-07
This is a follow up of the problem <https://www.mathworks.com/matlabcentral/cody/problems/45341-area-06> in this case, fi...

18 days ago

Solved

Don't be Greedy!
A list of assignments is given to the students along with the submission deadlines. Each of the assignment contains particular...

19 days ago

Solved

Find the Prime Factors and Divisors of a Number
Given a positive integer n, find its prime factors as well as all of its divisors. Example: n=12 has prime factors [2,2,3] and ...

20 days ago

Solved

Play Oware with the digits of a number
Oware is a pit and pebble game that consists of two sets of pits or houses filled with pebbles or seeds. During a turn, a player...

20 days ago