Letter Combinations of a Phone Number - Coddicted

Letter Combinations of a Phone Number

Title: Letter Combinations of a Phone Number Source: leetcode.com

Given a digit string, return all possible letter combinations that the number could represent.

A mapping of digit to letters (just like on the telephone buttons) is given below.


image source: leetcode.com

Note:
Although the above answer is in lexicographical order, your answer could be in any order you want.

Python solution


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