Question: Describe a set. Provide a a code snippet with common operations. Describe dictionary. Provide a a code snippet with common operations. Describe a hashing technique.

Describe a set. Provide a a code snippet with common operations.
Describe dictionary. Provide a a code snippet with common operations.
Describe a hashing technique.
Assume that the set s contains the number 3. Write the sequence of sets (for each line below) resulting from the following operations:
s.add(4)
s.add(4)
s.add(5)
s.remove(3)

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