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
Replace May with April
Calculate the area of a triangle between three points
CONVERT TAN TO SIN
Fahrenheit to Celsius converter
Check that number is whole number
Connect Four Win Checker
Tic Tac Toe FTW
Replace NaNs with the number that appears to its left in the row.
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