参考: https://leetcode.com/problems/shortest-path-in-binary-matrix/discuss/312827/Python-Concise-BFS
Given ann x nbinary matrixgrid, returnthe length of the shortest clear path in the matrix. If there is no clear path, return-1. A clear path in a binary matrix is a path from the top-left cell (i.e.,(0, 0)) to the bottom-right cell (i.e.,(n - 1, n - 1)) such that...
Can you solve this real interview question? Shortest Path in Binary Matrix - Given an n x n binary matrix grid, return the length of the shortest clear path in the matrix. If there is no clear path, return -1. A clear path in a binary matrix is a path f
Can you solve this real interview question? Shortest Path in a Grid with Obstacles Elimination - You are given an m x n integer matrix grid where each cell is either 0 (empty) or 1 (obstacle). You can move up, down, left, or right from and to an empty ce
shortest, path = FloydWarshall(graphData) for item in shortest: print(item) print() for item in path: print(item) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 在SciPy中有一个官方提供的floyd_warshall函数,我们可以通过调用它来验证一下我们写的floydWarshall算法是否正确。有些不同的地方...
1091. Shortest Path in Binary Matrix刷题笔记 问题描述很显然是一种最短路问题,可以用广度优先来做(可以理解为大水漫灌) LeetCode代码: class Solution: def shortestPathBinaryMatrix(self, grid: List[List[int]]) -> int: m = len(grid) n = len(grid[0])...
Shortest Path in Binary Matrix queue.append((i+1, j+1, count)) return -1 Reference https://leetcode.com/problems/shortest-path-in-binary-matrix 30510 Shortest Unsorted Continuous Subarray } } return end - start + 1; } }; Reference https://leetcode.com/problems/shortest-unsorted-continuous...
Code Issues Pull requests In this project, given a matrix of integers where each cell represents a weight, you are tasked with writing a program that finds a continuous path that combines any element of the first row with any element of the last row in the matrix, aiming to minimize the...
path.commonprefix(strs) 15. 3Sum 5行 class Solution: def threeSum(self, nums: List[int]) -> List[List[int]]: nums, r = sorted(nums), set() for i in [i for i in range(len(nums)-2) if i < 1 or nums[i] > nums[i-1]]: d = {-nums[i]-n: j for j, n in ...
1091. Shortest Path in Binary Matrix # 题目# In an N by N square grid, each cell is either empty (0) or blocked (1). A clear path from top-left to bottom-right has length k if and only if it is composed of cells C_1, C_2, ..., C_k such that: Adjacent cells C_i and...