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
Back to basics 22 - Rotate a matrix
Find perfect placement of non-rotating dominoes (easier)
Find a subset that divides the vector into equal halves
What number has this problem?
02 - Vector Variables 2
Add two numbers
Word Counting and Indexing
It dseon't mettar waht oedrr the lrettes in a wrod are.
Find the two most distant points
DNA N-Gram Distribution
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