DIY: Open Lock
Explore how to solve the open lock puzzle by developing a Python function that calculates the minimum number of turns to reach the target code while avoiding deadend states. Understand state transitions and breadth-first search to handle wrap-around wheel rotations, helping you tackle similar lock and puzzle problems in coding interviews.
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 ...