my-solutions/leetcode/0017-letter-combinations-of-a-phone-number/readme.md

17. Letter Combinations of a Phone Number

Leetcode

Given a string containing digits from 2-9 inclusive, return all possible letter combinations that the number could represent. Return the answer in any order.

A mapping of digits to letters (just like on the telephone buttons) is given below. Note that 1 does not map to any letters.