Problem2407--hlgg与迷宫

2407: hlgg与迷宫

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Time Limit : 1.000 sec  Memory Limit : 128 MiB

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Description

Input

Output

如果hlgg能走到(n,m)则输出Yes，否则输出No。

Sample Input Copy 

 3 5
.##.#
.#...
...#.

Sample Output Copy 

Yes

HINT

Source/Category

admin 
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