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
Sort a list of complex numbers based on far they are from the origin.
Project Euler: Problem 7, Nth prime
Add two numbers
Multiples of a Number in a Given Range
Fahrenheit to Celsius converter
Given two strings, find the maximum overlap
Determine if input is odd
Read a column of numbers and interpolate missing data
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