A set in Java is a collection that stores a unique set of elements. This means that there are no duplicates in a set. You can define set using HashSet, TreeSet, or LinkedHashSet...
Design an algorithm to serialize and deserialize a binary tree. There is no restriction on how your serialization/deserialization algorithm should work. You just need to ensure that a binary tree can be serialized to a string and this string can be deserialized to the original tree structure...