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Solved
A sequence of Ones
You are given number(s) with all digits - 1. Your answer will depend on the count of 1 in the given number, for example - x1...
21 hours ago
Solved
Loading/Expanding a ZIP file from File Exchange
This challenge is to load a ZIP file from Mathworks File Exchange and UNZIP the contents. *Input:* url_link of ZIP'd file ...
21 hours ago
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Magic - Faro Shuffle
The Faro shuffle is the perfect interweaving of cards. Quiz: How many Faro's returns a standard 52 deck to its start? Fifty fo...
21 hours ago
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Regex match
Many regular expression engines have a simple function to quickly know whether a regular expression entirely matches a string or...
22 hours ago
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2D Indexes
Given in input the maximum degree P, the algorithm furnishes a ordered list of two dimensional vectors [i,j] i,j>=0 such that i+...
22 hours ago
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Kissing Circles-01
Three circles are mutually tangent to each other and also to a line. find the radius of the smallest circle. The radius of th...
22 hours ago
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Create a 3D rotation matrix
Consider an arbitrary coordinate frame {A}. Consider another coordinate frame {B} which has the same origin as {A} but is rotat...
22 hours ago
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Return the product of all elements of a vector or matrix without using built-in functions
Compute the product of all elements of the input array without using the built-in functions prod, ans, or size.
22 hours ago
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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 ....
22 hours ago
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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: ...
2 days ago
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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...
2 days ago
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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...
3 days ago
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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...
3 days ago
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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...
3 days ago
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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...
4 days ago
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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...
4 days ago
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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...
4 days ago
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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 ...
4 days ago
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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...
4 days ago
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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...
6 days ago
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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 ...
6 days ago
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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....
6 days ago
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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...
6 days ago
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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...
6 days ago
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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 ...
6 days ago
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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...
6 days ago
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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...
6 days ago
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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...
6 days ago
