-1: A wall or an obstacle. 0: A gate. INF: Infinity means an empty room. We use the value 2^31 - 1 = 2147483647 to represent INF as you may assume that the distance to a gate is less than 2147483647.

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The Conference Championship Round of the 2025 NFL Playoffs is on tap for Sunday and will feature a loaded NFL DFS player pool. The Kansas City Chiefs have the opportunity to move one step closer ...

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