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Get the area codes from a list of phone numbers
Given a string of text with phone numbers in it, return a unique'd cell array of strings that are the area codes. s = '508-647...

18 días hace

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Find the palindrome
Given the string a, find the longest palindromic sub-string b. So when a = 'xkayakyy'; you should return b = 'kayak';

18 días hace

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Scrabble Scores
Given a word, determine its score in <http://en.wikipedia.org/wiki/Scrabble Scrabble>. The input string will always be provi...

18 días hace

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CamelCase to snake_case convention
The CamelCase naming convention capitalizes the first letter of each word. In snake_case convention, words are written in lowerc...

19 días hace

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Find the repeating elements and repetitions of a row vector.
So let's say that x is a vector, for example, x = [4, 4, 5, 5, 5, 6, 7, 7，8, 8, 8, 8] Now we want to get the following two ve...

19 días hace

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Find record values in a sequence
Write a function to find the record values in a sequence—that is, the largest values seen since the start. For example, if the s...

19 días hace

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For a given linear index as input for n sized square matrix, find corresponding row and column.
If input is 1, the row and column will be 1 and 1 respectively.

19 días hace

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Matrix Pattern 10

19 días hace

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Prime Ladders
A <http://en.wikipedia.org/wiki/Word_ladder word ladder> transforms one word to another by means of single-letter mutations. So ...

19 días hace

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Goldbach's marginal conjecture - Write integer as sum of three primes
Goldbach's strong conjecture states that every even integer greater than 2 can be expressed as the sum of two primes. For exampl...

24 días hace

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The Goldbach Conjecture, Part 2
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

24 días hace

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Government of the Neds, by the Neds, for the Neds - Distribute the Nedsburg City Councilors
The city of Nedsburg consists of several islands, the number of which changes regularly, due to tectonic forces, shoddy civil en...

25 días hace

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Convert Decimal to Hexavigesimal
NASA (Ned’s Alien-Spying Agency) have made contact with a 13-fingered race from the planet Genai. Naturally, Ned’s shadowy opera...

25 días hace

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Popular Word Game™ Distance
Professor Ned, who holds the Nedowed Chair of Crackpot Mathematics at the University of Nedsburg, has recently discovered the da...

25 días hace

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Who Holds the Lord Ned Challenge Shield?
During the Nedball Premier League regular season, each of the n teams plays each of the other (n-1) teams twice, once at home an...

25 días hace

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Transition Matrix for the Royal Game of Err
Bored of tedious court assemblies, King Neduchadneddar the Procrastinator has found a cunning way to keep his advisors, councilo...

26 días hace

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Leaderboard for the Nedball World Cup
At the upcoming inaugural Nedball World Cup, organizers need to track who is in the lead for the coveted Golden Toeplitz trophy,...

27 días hace

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Find the rank of a matrix
Determine the rank of a matrix without using the MATLAB function of the same name.

27 días hace

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Delete the column with all 0 in the TABLE
In the given table (T), delete the column with all 0 data. e.g. input Banana Apple Orange Mellon __...

27 días hace

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String Logic 17
Examples: 'DIG' --> 'GDI' 'IMPORTANT' --> 'TANTIMPOR' 'DEAL' --> 'EALD' 'LIMB' --> 'IMBL' 'MOSTLY' --> 'YMOSTL'

27 días hace

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To convolve two vectors
To convolve two vectors

27 días hace

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Create a code for XNOR
Given two inputs, output XNOR of those two

27 días hace

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Power Times (of the day)
Many times throughout the day can represent mathematical equations. In this problem, we focus on times that represent powers. Fo...

28 días hace

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Digital Neighbourhood
Given a natural number reorder its digits to create another number, closest to the given one. Examples: * 123 gives 132, ...

28 días hace

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Binary Neighbourhood
Given a natural number reorder its binary form to create another number, closest to the given one. Examples: * 1 gives 2, ...

28 días hace

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Create a recurrence matrix for a vector of data
In <https://en.wikipedia.org/wiki/Conversation_analysis conversation analysis>, it's often useful to track the contributions fro...

28 días hace

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Check if the input is a strong prime

29 días hace

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Add Me To Death (Sum sum sum)
Given certain vector, sum of the input vector, get the sum of 2 adjacent numbers in the input, and sum of the output vector (wh...

29 días hace

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Draw "T" inside a Zero Matrix
Given a x-by-x matrix filled with zeros (x> 2). Use 1 to draw a letter "T" into it! Like this: x = 5, y = 1 1 1 1 1 0 0 1 0 0...

29 días hace

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Cryptography with A Square Matrix : Encoding
Matrix inverse operation can be used to encode or decode of a message. For example text = 'matlab & cody'. numeric e...

30 días hace