NeetCode #611LC-505MediumGraphsNC Algo100
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#611 · #505 · The Maze II(迷宫 II)

📌 Problem Statement & Constraints

A ball rolls in a maze until it hits a wall. Given start and destination, return the shortest distance (number of empty cells passed, excluding the start) for the ball to stop at the destination, or -1. Constraints: 1 <= m, n <= 100.
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