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Comments on Backspace an array

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Backspace an array

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Challenge

Given an array consisting of positive integers and 0s, return it with 0s acting like backspaces.

Leading backspaces do nothing, and more backspaces than elements also does nothing.

Credit: A comment on this video

Test Cases

[0,0,0,0,0,5,7] -> [5,7]
[1,2,0,3] -> [1,3]
[1,5,5,0,2,0,0,8] -> [1,8]
[1,2,3,4,0,0,9] -> [1,2,9]
[1,2,0,0,0,0,0] -> []
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1 comment thread

General comments (4 comments)
General comments
Wezl‭ wrote almost 3 years ago

Can I take it as a string?

rak1507‭ wrote almost 3 years ago

Sorry for the late reply, sure, that's fine

Moshi‭ wrote almost 3 years ago

"Given an array consisting of positive integers" I kind of assumed that the positive integers are single digits because of your examples, but do I have to accept any positive integers?

rak1507‭ wrote almost 3 years ago

To be honest I think it should really be able to handle any positive integer, should have maybe had a test case for that.