Merge two arrays and sort the final one

Question

In an interview I was asked the following question. I am given two arrays, both of them are sorted.

BUT

Array 1 will have few -1\'s and Array 2 will have to

Answer 1

Couldn't it be something like

compare each item of arrayTwo with each item of arrayOne If it comes to bigger that that of arrayOne, insert the item and while iterating arrayOne delete all the -1 .