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
Remove all the words that end with "ain"
Project Euler: Problem 2, Sum of even Fibonacci
Make one big string out of two smaller strings
Convert a vector into a number
Find nth maximum
Determine whether a vector is monotonically increasing
Clean the List of Names
Prime factor digits
Maximum running product for a string of numbers
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