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Solution: Design HashSet

Explore how to build a MyHashSet class without built-in libraries by implementing add, remove, and contains methods. Learn to design an efficient hash function and manage collisions using separate chaining with binary search trees. This lesson deepens your ability to construct custom data structures that handle large key spaces effectively.

Statement

Design a MyHashSet class without using any built-in hash table libraries and implement the following methods in it:

  • void add(key): Inserts the value key into the HashSet.

  • bool contains(key): Returns TRUE if the key exists in the HashSet, FALSE otherwise.

  • void remove(key): Removes the value key if it exists in the HashSet.

Constraints:

  • 00 \leq key 106\leq 10^6

  • At most, 10410^4 ...