After compacting [0, 1, 0, 3, 12], what remains to do?

Question

After compacting [0, 1, 0, 3, 12], what remains to do?

Option A

Sort the array

Option B — Correct answer

Fill the remaining tail with zeroes

Option C

Reverse the array

Option D

Remove all zeroes from memory

Explanation

Fill the remaining tail positions with zeroes.

Move Zeroes - Two pointers Pattern Practice Quiz