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
Make the vector [1 2 3 4 5 6 7 8 9 10]
Increment a number, given its digits
Project Euler: Problem 5, Smallest multiple
Number of toolboxes?
Scoring for oriented dominoes
Return the 3n+1 sequence for n
Find the two most distant points
Find state names that start with the letter N
Make a checkerboard matrix
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