Java LLD: Designing Snakes and Ladders with O(1) Move Resolution
Designing Snakes and Ladders is a classic LLD (Low-Level Design) interview question that tests your ability to write clean, maintainable, and highly performant code. While the rules are simple, naive implementations quickly fall apart under scale, concurrency, or changing business requirements.
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The Mistake Most Candidates Make
Expensive Runtime Scans: Iterating through lists of snakes and ladders on every single move, turning an $O(1)$ lookup into a slow $O(N)$ search.
