The test suite is a little soft. I feel the addition of 'for i=log2(2):abs(n^2-n)', which should yield 'for log2' would stymie almost all the solutions provided.
In my opinion, the Cody problems should expand Matlab understanding not cause frustration in search of obscure functions. To this end, I think the tags should include regexp, symvar, cellfun, sprintf, exist, unique, and cell2mat. Learning the usage of these functions is one purpose of Cody.
also operands like +,-,/,*,.*,~,|,& etc. are treated by Matlab as builtin functions, so in my opinion test case 2 answer sholud be ': sqrt sum' and for test case 3 '- ones rand round'
Nice...unfortunately, it is not a general solution. For example: if 'x = ones(round(7.7)) - rand + b;', then this code will sniff y = 'b ones rand'.
you found it huh?:) no,it's not a general solution, I built it base on test suite.
Replace NaNs with the number that appears to its left in the row.
Return the 'Size' of a String of Code
First non-zero element in each column
Matrix which contains the values of an other matrix A at the given locations.
Construct an index vector from two input vectors in vectorized fashion
How many palindromes?
How to subtract?
Find the outlier in a set of samples
Given an unsigned integer x, find the largest y by rearranging the bits in x
Acid and water
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