How can one combine array elements from four different arrays without data repetition creating an ordered list?

Question

JavaScript or C++

Answer 1

I gave an algorithm in this thread for 2 arrays. It can easily handle 4.
https://www.sololearn.com/Discuss/1368522

Same offer of help coding, if you need it.

Answer 2

Here you go, an example of combine 4 arrays and show it on order list.

https://code.sololearn.com/Wedb1ifjAlPH/?ref=app