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Fast 1-D Convolution (valid shape)
Pursuant to the first problem in the <http://www.mathworks.com/matlabcentral/cody/?term=Fast+1-D+Convolution fast 1-D convolutio...

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Fast 1-D Convolution (same shape)
Pursuant to the first problem in the <http://www.mathworks.com/matlabcentral/cody/?term=Fast+1-D+Convolution fast 1-D convolutio...

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Fast 1-D Convolution (full shape)
This is the first problem in the <http://www.mathworks.com/matlabcentral/cody/?term=Fast+1-D+Convolution fast 1-D convolution se...

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Lights Out 6 - 5x5, 13 moves
<https://en.wikipedia.org/wiki/Lights_Out_(game) Lights Out> is a logic game wherein all lights need to be turned off to complet...

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Split a string into chunks of specified length
Given a string and a vector of integers, break the string into chunks whose lengths are given by the elements of the vector. Ex...

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Sorting integers by their digits (Level 4)
This is the next step up from <http://www.mathworks.com/matlabcentral/cody/problems/42815-sorting-integers-by-their-digits-level...

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Pairwise column flip
Given matrix *M_in*, flip every pair of columns. So if *M_in* is 1 2 3 4 1 2 3 4 then *M_out* is 2 1 4 3 2 1 4 3 ...

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Lights Out 5 - 5x5, 10 moves
<https://en.wikipedia.org/wiki/Lights_Out_(game) Lights Out> is a logic game wherein all lights need to be turned off to complet...

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Lights Out 4 - 5x5, 8 moves
<https://en.wikipedia.org/wiki/Lights_Out_(game) Lights Out> is a logic game wherein all lights need to be turned off to complet...

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Lunar Arithmetic (Multiplication)
<https://oeis.org/A087061 OEIS link for a description of lunar arithmetic> Simply take the larger digit when adding and take ...

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Convert a vector to a lower triangular matrix
I now have a row vector and I want to convert it to a lower trilangular matrix. The rows of the lower trilangular matrix have...

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Produce the following matrix
Produce the following matrix x = [2 3 4] y_correct = [1 1/2 1/3; 2 1 1/4; 3 4 1];

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Check if integer
Given a vector of elements, determine if each element is an integer and return true or false accordingly.

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Muphry's Law of MATLAB
You're running some simple multiplication problems through MATLAB for error checking purposes, but nothing seems to come up with...

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How many problems and solutions did you like?
When I started to create problems in my early stages of playing Cody, one day, I realized that Aurelien Queffurust liked one of ...

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What can you get for exactly amount of money(harder)
Inspired by Problem 42996. what can you get for exactly amount of money <https://ww2.mathworks.cn/matlabcentral/cody/problems/4...

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What can you get for exactly amount of money(harder)
Inspired by "Problem 42996. what can you get for exactly amount of money" <https://ww2.mathworks.cn/matlabcentral/cody/problems...

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what can you get for exactly amount of money
You go to store, where each product has price. Prices are in vector s = [ 195 125 260 440 395 290] and you have amount ...

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Pumpkin Pie!
It's time for desert at Thanksgiving. You've all gathered at grandma's house, and she's about to start cutting the pumpkin pie. ...

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Pass the Threshold!!
Write a Matlab function that will take as input a matrix of arbitrary dimensions and a scalar threshold value, and return a vec...

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Lunar Arithmetic (Addition)
<https://oeis.org/A087061 OEIS link for a description of lunar arithmetic> Simply take the larger digit. Example 1: ...

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Project Euler: Problem 14 Longest Collatz sequence(harder version)
This problem is a harder version of "Problem 44448. Project Euler: Problem 14 Longest Collatz sequence", because of time limits....

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Addition
Add 2 numbers e.g a=1; b=1 c=a+b;

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give-nth-decimal-place-of-pi up to 100 digits
max 100th place after the decimal point this is upgrade problem of 142

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deconvolution
* Suppose there is a vector v like [1 0 0 -1], representing polynomial coefficients. * In this example, the polynimial is 1*x^3...

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Array GCD
* Find Greatest Common Divisor in a given array * Function Template: function ans = arraygcd(a) % a=[45 15 200 ...

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How many days?!?
Christmas is coming earlier and earlier each year. Thanks to rampant commercialism and Christmas Creep, "The Twelve Days of Chr...

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Expand 10^n to Powers of 4
Given an integer n, return the coefficients c = [c_n,c_n-1,...,c_0] Such that 10^n = c_n*4^(n) + c_n-1*4^(n-1...

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Calculate Euler's phi function
Compute the Euler's phi function of a large integer. For more information about this topic please visit: <https://en.wikiped...

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Highest powers in factorials
This is the inverse of the problem <https://www.mathworks.com/matlabcentral/cody/problems/44747 Exponents in Factorials>. Inste...

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