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
Find the numeric mean of the prime numbers in a matrix.
Remove all the words that end with "ain"
Implement a ROT13 cipher
Check to see if a Sudoku Puzzle is Solved
The Tower of Hanoi
Finding Perfect Squares
Who Has the Most Change?
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