#include <iostream> #include <vector> #include <queue> using namespace std; int shortestPathBinaryMatrix(vector<vector<int>>& grid) { int n = grid.size(); if (grid[0][0] == 1 || grid[n-1][n-1] == 1) return -1; vector<vector&...
class Solution { public: void full_dire(int x, int y, queue<pair<int, int>> &path, vector<vector<int>>& grid){ if(x > 0 && y > 0 && grid[x - 1][y - 1] == 0){ grid[x - 1][y - 1] = grid[x][y] + 1; path.push({x - 1, y - 1}); } if(y > 0 && ...
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...
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]]...
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) ...
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...
LeetCode-1091. Shortest Path in Binary Matrix 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...
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
Given amazein the form of a binary rectangular matrix, find the shortest path’s length in the maze from a given source to a given destination. The path can only be constructed out of cells having value 1, and at any moment, we can only move one step in one of the four directions....