DIY: Open Lock
Explore how to solve the open lock problem by calculating the minimum wheel turns needed to reach a target code from '0000' while avoiding deadends. Learn to implement BFS to navigate states and handle circular wheel rotations, strengthening your coding interview skills in C++.
We'll cover the following...
We'll cover the following...
Problem statement
You have an old lock in front of you with four circular wheels. Each wheel has ten slots: '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'. The wheels can rotate freely and wrap around. For example, we can turn '9' to be '0' or '0' to be '9'. Each move consists of ...