DIY: Decode Ways
Explore how to decode a string of digits into all possible letter combinations by mapping numbers to letters from A to Z. Understand the rules of valid groupings and implement a function in JavaScript to count decoding possibilities, improving your grasp of encryption and validation in cyber security.
We'll cover the following...
We'll cover the following...
Problem statement
A message containing the letters from A-Z can be encoded into a string of numbers, using the following mapping:
'A' -> "1"
'B' -> "2"
...
'Z' -> "26"
To decode an encoded message, all the digits must be grouped and then mapped back into letters, using the reverse of the mapping ...