Question

A. what is a dictionary and a default dictionary? what is the advantage of using a default dictionary? explain with example.

Answer 1

default dictionary help us find difficult meaning of questions

Answer 2

Explanation:

Dictionaries are a convenient way to store data for later retrieval by name (key). A defaultdict works exactly like a normal dict, but it is initialized with a function (“default factory”) that takes no arguments and provides the default value for a nonexistent key. A defaultdict will never raise a KeyError.

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