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DIY: Open Lock

Explore how to solve lock combination problems by implementing an algorithm to find the minimum turns required. This lesson guides you through handling constraints such as deadend codes and wheel rotations, helping you develop problem-solving skills relevant for coding interviews and real-world applications.

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 ...