Description
Follow up for "Unique Paths":
Now consider if some obstacles are added to the grids. How many unique paths would there be?
An obstacle and empty space is marked as 1 and 0 respectively in the grid.
m and n will be at most 100.
Example
Example 1:
Input: [[0]]
Output: 1
Example 2:
Input: [[0,0,0],[0,1,0],[0,0,0]]
Output: 2
Explanation:
Only 2 different path.
思路：
和114题思路一致，就是多判断一个点是不是障碍，是障碍就直接跳过。
代码：
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本文标题：115. Unique Paths II
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