17 Letter Combinations of a Phone Number

Published: 08 August 2024
on channel: Aditya Verma
3,758
87

Code and explanation: https://www.patreon.com/posts/letter-...

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.


Example 1:

Input: digits = "23"
Output: ["ad","ae","af","bd","be","bf","cd","ce","cf"]
Example 2:

Input: digits = ""
Output: []


Problem Statement link: https://leetcode.com/problems/letter-...

------------------------------------------------------------------------------------------
Here are some of the gears that I use almost everyday:

🖊️ : My Pen (Used in videos too): https://amzn.to/38fKSM1
👨🏻‍💻 : My Apple Macbook pro: https://amzn.to/3w8iZh6
💻 : My gaming laptop: https://amzn.to/3yjcn23
📱 : My Ipad: https://amzn.to/39yEMGS
✏️ : My Apple Pencil: https://amzn.to/3kMnKYf
🎧 : My Headphones: https://amzn.to/3kMOzM7
💺 : My Chair: https://amzn.to/385weqR
🛋 : My Table: https://amzn.to/3TyU2IU
⏰ : My Clock: https://amzn.to/3slFUV3
🙋🏻‍♀️ : My girlfriend: https://amzn.to/3M6zLDK ¯\_(ツ)_/¯

PS: While having good gears help you perform efficiently, don’t get under the impression that they will make you successful without any hard work.


Watch video 17 Letter Combinations of a Phone Number online without registration, duration hours minute second in high quality. This video was added by user Aditya Verma 08 August 2024, don't forget to share it with your friends and acquaintances, it has been viewed on our site 3,758 once and liked it 87 people.