class Solution { public int shortestPathBinaryMatrix(int[][] grid) { int n = grid.length - 1; Queue<Pair<Integer,Integer>> q = new ArrayDeque<Pair<Integer,Integer>>(); q.add(new Pair(0, 0)); if (grid[0][0] == 1 || grid[n][n] == 1) return -1; // grid[0][0]是出...
二进制矩阵中的最短路径 Shortest Path In Binary Matrix 给定一个N*N矩阵grid,返回一个最短路径,如果没有就返回-1; 最短路径:从grid的左上角[0,0]开始,直到右下角[n-1,n-1],所有路径上的点必须是0, 路径可以是上下左右,还可以是左上左下,右上右下。 grid =[[0,1],[1,0]]out:2 思路 grid...
Given ann x nbinary matrixgrid, returnthe length of the shortestclear pathin the matrix. If there is no clear path, return-1. Aclear pathin a binary matrix is a path from thetop-leftcell (i.e.,(0, 0)) to thebottom-rightcell (i.e.,(n - 1, n - 1)) such that: All the ...
classSolution {privateintdir[][] =newint[][]{{0,1},{0,-1},{1,0},{-1,0},{1,-1},{-1,1},{-1,-1},{1,1}};publicintshortestPathBinaryMatrix(int[][] grid) {intm =grid.length;intn = grid[0].length;if(grid[0][0]==1|| grid[m-1][n-1]==1) {return-1; } boole...
1091. Shortest Path in Binary Matrix In an N by N square grid, each cell is either empty (0) or blocked (1). Aclear path from top-left to bottom-righthas lengthkif and only if it is composed of cellsC_1, C_2, ..., C_ksuch that:...
def shortestPathBinaryMatrix(self, grid): m = len(grid) n = len(grid[0]) length = 0 success = 0 to_check1 = [[0,0]] to_check2 = [] while to_check1 and not success: length += 1 while to_check1: [x,y] = to_check1.pop(0) ...
二进制矩阵中的最短路径 Shortest Path In Binary Matrix 给定一个N*N矩阵grid,返回一个最短路径,如果没有就返回-1; 最短路径:从grid的左上角[0,0]开始,直到右下角[n-1,n-1],所有路径上的点必须是0, 路径可以是上下左右,还可以是左上左下,右上右下。
Shortest Path Algorithm In subject area: Computer Science A 'Shortest Path Algorithm' refers to a computational method used in computer science to find the most efficient route between two points in a network, such as an IP network or a telephone network. It is particularly useful for ...
1091. Shortest Path in Binary Matrix 问题: 给定n*n二维数组,要从(0,0)->(n-1,n-1) 0:通路 1:障碍 求最少多少步能到达。 可以走当前格子的8个方向。 Example 1: Input: grid = [[0,1],[1,0]] Output: 2 Example 2: Input: grid = [[0,0,0],[1,1,0],[1,1,0]]...
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 from the top-left cell (i.e., (0, 0)) to the bottom-right cell (i.e., (n - 1, n - 1)...