See my function "seqle" on FileExchange. It may not be as compact, but it's easy to use and both encodes and decodes.
The problem statement would have been clearer if the principle of RLE had been explained with an encoding example first. Alternatively, it would have been useful to explicitly mention that the data in vector x is being read pairwise.
ugly but more fun than loops!
note: repelem did not exist back when this problem was created
not limited to 1-9
This is my favourite
Best score without regexp
Indexed Probability Table
Remove NaN ?
How many trades represent all the profit?
03 - Matrix Variables 3
Extract leading non-zero digit
Sort a list of complex numbers based on far they are from the origin.
Find the alphabetic word product
Make a Palindrome Number
Find the two most distant points
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