添加 0063.不同路径II.md Rust版本

添加 0063.不同路径II.md Rust版本

problems/0063.不同路径II.md

@@ -384,6 +384,42 @@ function uniquePathsWithObstacles(obstacleGrid: number[][]): number {
 };
 ```
 
+### Rust
+
+```Rust
+impl Solution {
+    pub fn unique_paths_with_obstacles(obstacle_grid: Vec<Vec<i32>>) -> i32 {
+        let m: usize = obstacle_grid.len();
+        let n: usize = obstacle_grid[0].len();
+        if obstacle_grid[0][0] == 1 || obstacle_grid[m-1][n-1] == 1 {
+            return 0;
+        }
+        let mut dp = vec![vec![0; n]; m];
+        for i in 0..m {
+            if obstacle_grid[i][0] == 1 {
+                break;
+            }
+            else { dp[i][0] = 1; }
+        }
+        for j in 0..n {
+            if obstacle_grid[0][j] == 1 {
+                break;
+            }
+            else { dp[0][j] = 1; }
+        }
+        for i in 1..m {
+            for j in 1..n {
+                if obstacle_grid[i][j] == 1 {
+                    continue;
+                }
+                dp[i][j] = dp[i-1][j] + dp[i][j-1];
+            }
+        }
+        dp[m-1][n-1]
+    }
+}
+```
+
 ### C
 
 ```c