Solve Open the Lock BFS
SnapchatSoftware Engineer · Technical Screen
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This question evaluates the ability to model the lock as a state-space and apply graph traversal and shortest-path techniques (breadth-first search) to determine minimal move sequences under constraints.
Question
LeetCode 752. Open the Lock – Given an initial lock state "0000", a target combination, and a list of deadend combinations that cannot be used, each move rotates one digit ±1 (with wrap-around), find the minimum number of moves to reach the target.
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