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###### tags: `Leetcode`

# 63. Unique Paths II

## 題目
###### Link : https://leetcode.com/problems/unique-paths-ii/

## 程式碼

class Solution {
public:
    int uniquePathsWithObstacles(vector<vector<int>>& obstacleGrid) {
        int m = obstacleGrid.size(), n = obstacleGrid[0].size();
        vector<vector<int>> dp(m + 1, vector<int> (n + 1, 0));
        dp[1][0] = 1;
        for(int i = 1;i <= m;++i){
            for(int j = 1;j <= n;++j){
                if(obstacleGrid[i - 1][j - 1] == 1) continue;
                dp[i][j] = dp[i - 1][j] + dp[i][j - 1];
            }
        }
        return dp[m][n];
    }
};