# 2849. Determine if a Cell Is Reachable at a Given Time 給定起點跟終點,是否能在時間內從起點到終點,移動方式是周圍8格,一秒一步 ```python class Solution: def isReachableAtTime(self, sx: int, sy: int, fx: int, fy: int, t: int) -> bool: width = abs(sx - fx) height = abs(sy - fy) if width == 0 and height == 0 and t == 1: return False return t >= max(width, height) ```