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Horizontal matrix sort
Given a matrix x with n rows and m columns, return a matrix y with n rows and 2m columns, such that every row in x is sorted fro...

9 hours ago

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Find prime number couples
Given a vector a, which will always contain at least one pair of prime numbers couple, return a matrix called 'couple' in which ...

9 hours ago

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What time can I drive after drinking?
At T o'clock, after a hard day of Matlab, I immediately start drinking and treat myself to N pints of tasty beer. Each beer I dr...

9 hours ago

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convert 2D array of ones and zeros to checkerboard array of [1,2] where the original array was ones and zero elsewhere
Given a 2D array of ones and zeros, generate an equivalent sized checkerboard array of ones and twos. The checkerboard pattern s...

9 hours ago

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Sum! Sum! Sum!
Calculate the sum of the sequence up to nth term >> a,aa,aaa,aaaa,... 2,22,222,2222,... [for a=2]

9 hours ago

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Determinant of a 3x3 Matrix
Return the determinant of a 3x3 matrix. The built-in Matlab function det is not allowed.

9 hours ago

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Unique dice configurations
Given a number of dice N and the number of sides on each die S, write a MATLAB function that will output how many unique permuta...

9 hours ago

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Generate a string like abbcccddddeeeee
This is the string version of Problem 1035. <http://www.mathworks.com/matlabcentral/cody/problems/1035-generate-a-vector-like-1-...

9 hours ago

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Check transmitted data follow even parity (True or false)
Check transmitted data follow even parity (True or false) <http://en.wikipedia.org/wiki/Parity_bit/ Parity Bit> Say, '010...

9 hours 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...

9 hours ago

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Draw 'W'
For any given n, return a matrix of height n and width 4n-3 containing a W of ones. Example: n=2 ans= [1 0 1 0 1 0 1 0 1 0...

9 hours ago

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Circular Segment Area
Let us consider a circle with radius . If we draw an angle (in radians) from the center of the circle, the two radii forming th...

10 hours ago

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Mongean Shuffle
A Mongean shuffle of an n card deck starts with putting the initial deck on the left hand side. * The top card of the deck is...

10 hours ago

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Bessel Polynomials
Return the n-th Bessel polynomial Assume that n is a non-negative finite integer. bessel_poly(0) ans = 1 bessel_poly(1) ...

10 hours ago

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Modulo of sum of square of first n primes with 24

10 hours ago

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Babylonian method
Calculate the square root of a given positive number a using the Babylonian method (https://en.wikipedia.org/wiki/Methods_of_co...

10 hours ago

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Radius of an inner N-dimensional sphere
A hypercube is an N-dimensional analogue of a square (N=2). Similarly, an N-sphere is an N-dimensional analogue of a circle. Not...

11 hours ago

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Convert binary numbers array into array of decimal numbers.
Convert binary numbers array into array of decimal numbers. Example x=[ 11001000 ; 11001001 ; 11001010 ; 11001011 ; 11001100 ;...

11 hours ago

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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...

11 hours ago

Solved


Matrix indexing with two vectors of indices (★★)
(copy of Prob 589) Given a matrix M and two index vectors a and b, return a row vector x where x(i) = M(a(i),b(i)). Thus, if...

11 hours ago

Solved


Mesh the square with triangles
Problem statement An square is a regular polygon with 4 vertices and 4 edges. A triangulated mesh T (stands for triangles he...

11 hours ago

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Return longest string in 1-D array of strings
Find the longest string in an array of strings. Return an empty string if the initial array is empty. If there are multiple stri...

11 hours ago

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determine the sum of decimal part for given matrix
determine the sum of fraction part for the given matrix

11 hours ago

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Square Patterns in a square matrix

11 hours ago

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Length of shortest path in a directed graph.
Given a directed graph and a start and end node in the graph, return the minimum number of hops required to reach the end node f...

11 hours ago

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Total Volume Goal ( Medium )
Usually, the target T must be in one jug. In this version, the target T is the sum of water in all N jugs. Example: C = [3,5], ...

11 hours ago

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Robust Huffman Decoding: The Single-Bit Error Challenge
In the world of data compression, Huffman coding is a classic algorithm. However, it is notoriously fragile: a single bit error ...

11 hours ago

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Find all prime factors of the input
Given an input x, find its all prime factors. Return the vector with all factors in ascending order. Efficiency is the key here...

4 days ago

Solved


Number Puzzle - 104

4 days ago

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Do you have the minimum age?

4 days ago

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