tests 4 and 6 can't succeed as randint is not available in cody (it's from the system communication toolbox).
Thanks :) .. modified
I'm not really sure why this doesn't work. It returns parentheses on right positions, but generates some random chars instead of spaces.
Ok, it seems that there is an internal bug in accumarray.
Prime factor digits
Find number of days
Back to basics - mean of corner elements of a matrix
Generate this matrix
Signal Processing Basic - 1. Stretch a signal
remove single elements
Magnet and Iron
Determine connected components of a graph
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