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Breadth First Search
Breadth First Search
Shortest Clear Path
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Given an n x n matrix grid, which contains of 0 and 1 only. Find the length of the shortest path in the matrix, which starts with grid[0][0] and ends in grid[n-1][n-1], and next conditions are satisfied:
- All cell of the path are
0 - All the adjacent cells of the path are connected 4-directionally.
The length of such a path is number of visited cells.
If there is no clear path, return -1.
Example 1
Input: n=3, grid = [[0, 0, 0],[1, 0 ,0],[1, 1, 0]]
Output: 5
Example 2
Input: n = 3, grid = [[0,1,0],[0,0,1],[1,1,0]]
Output: -1
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Shortest Clear Path
Swipe to start coding
Given an n x n matrix grid, which contains of 0 and 1 only. Find the length of the shortest path in the matrix, which starts with grid[0][0] and ends in grid[n-1][n-1], and next conditions are satisfied:
- All cell of the path are
0 - All the adjacent cells of the path are connected 4-directionally.
The length of such a path is number of visited cells.
If there is no clear path, return -1.
Example 1
Input: n=3, grid = [[0, 0, 0],[1, 0 ,0],[1, 1, 0]]
Output: 5
Example 2
Input: n = 3, grid = [[0,1,0],[0,0,1],[1,1,0]]
Output: -1
Wechseln Sie zum Desktop, um in der realen Welt zu übenFahren Sie dort fort, wo Sie sind, indem Sie eine der folgenden Optionen verwendenDanke für Ihr Feedback!
Wechseln Sie zum Desktop, um in der realen Welt zu übenFahren Sie dort fort, wo Sie sind, indem Sie eine der folgenden Optionen verwenden