[containsNearbyDuplicate finds insance of duplicates] @param nums [arr of integers] @param k [maximum distance b/w duplicates] @return boolean

fullJustify: L is the width of a legitmate string of size L add space padding in order for it to fit this. Also, it is guarenteed that each string w

This is used to see if the stack still has elements left in it. @return if Empty return true, else reeturn false