I feel smartn't seeing this

Looks very simple, clear, and easy. Thank you! As for me: as always I created more complicated solution :)

Fantastic. I was trying to create this simple O(n) O(n) solution. Only when you see it do you realise how simple it is. Kicking myself, as I was almost there twice but deleted and went down other avenues.
Great work.

omg this is brilliant

Fantastic solution.

I create 2 monsters to solve that one.

dont see my answer .. you will die, looool

excellent solve

Hey @mildlyeastern,

That's a great question! It's referred to as a ternary. It's a one line conditional statement where the condition is followed the truthy evaluation followed by the else. So like this:

condition == true ? ifConditionWasTrue : elseIfItWasNot

aka

if (condition == true) {
return ifConditionWasTrue;
}else{
return elseIfItWasNot
}

Can someone explain to me what the ? and the : does in the return statement.

Is this solution as efficient as using iterators?

There isn't a difference in using continue over else in this example. Seems more of a stylistic choice here than anything else.

Is there a reason to use continue instead of else?

whoa!!!! good one, mate.

Pretty Awesome! never would have thought of that :D