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Khaled Hamed
on 1 Aug 2012

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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3 players like this solution

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2 older comments

Ned Gulley
on 26 Jul 2012

I didn't know about $0! Nifty.

Khaled Hamed
on 26 Jul 2012

Neither did I! Matlab has great help.

Richard Zapor
on 31 Jul 2012

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.

Richard Zapor
on 31 Jul 2012

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)

Khaled Hamed
on 1 Aug 2012

The problem asks to "add" a zero, no mention of append or prepend! Nice general solution though, and a new trick learned ($&0)