Letter Case Permutation
Explore how to generate every possible letter case variation of a given string containing letters and digits. Understand how to modify each letter independently into lowercase or uppercase while keeping digits unchanged. This lesson helps you develop a systematic approach to solving letter case permutation problems common in coding interviews.
We'll cover the following...
We'll cover the following...
Statement
Given a string, s, consisting of letters and digits, generate all possible variations by modifying each letter independently to be either lowercase or uppercase while keeping the digits unchanged. Each letter in the s string can appear in both cases across different variations, resulting in multiple possible combinations. Return a list containing all such variations in any order.
Constraints: ...