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Problem 1999. Bleed non-zeros to the right using REGEXP, and that sort of cheatcodess...

Created by J-G van der Toorn

This one is quite similar to

But this time you are allowed to use regexp, regexprep, and regexpi. In fact, you are encouraged to do so, since I expect creative solutions, using dynamic regular expressions ( ).

You get a vector, some values and a lot of zeroes. Every zero is replaced by the first non-zero element to its left.

For example, [1 0 0 2 0] becomes [1 1 1 2 2] and [0 0 -12 13 0 i 0 -i 76.54321 0 0] becomes [0 0 -12 13 13 i i -i 76.54321 76.54321 76.54321].

Is it even easier now, or not? Still, eval and friends are forbidden.

Problem Group

Solution Statistics

13 correct solutions 7 incorrect solutions
Last solution submitted on Mar 09, 2016