Find code that adds one 0 to each sequence of 0 in a string (composed with only 0 or 1).
For example:
'1010' -> '100100' '0110' -> '001100' '1000' -> '10000' '1111' -> '1111'
Didn't really understand the problem right from reading the task itself, but from reading the test cases. Really fun problem though. First time I used regexprep function, so I learned a lot!
no regexp.
The problem asks to "add" a zero, no mention of append or prepend! Nice general solution though, and a new trick learned ($&0)
I feel I've overcomplicated my solution
regexprep(x, '(?(?=0[^0]|0$)0|)', '00')
I didn't know about $0! Nifty.
Neither did I! Matlab has great help.
The solution is not correct for the generalized case. 0$0 does a pre-pend of 0 not an append. The correct general solutions is either $00, or better to avoid operator ($0) confusion with the test set using 0s is operator ($%) $&0.
The solution is not correct for the generalized case. 0$0 does a pre-pend of 0 not an append. The correct general solutions is either $00, or better to avoid operator ($0) confusion with the test set using 0s is operator ($&) $&0. (Typo in prior comment)
The problem asks to "add" a zero, no mention of append or prepend! Nice general solution though, and a new trick learned ($&0)
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