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
The shortest path without eliminating any obstacle is 10. The shortest path with one obstacle elimination at position (3,2) is 6. Such path is(0,0) -> (0,1) -> (0,2) -> (1,2) -> (2,2) -> (3,2) -> (4,2). Example 2: Input: grid = [[0,1,1], [1,1,1], [1...
int shortestPath(vector<vector<int>>& grid, int k) { queue<vector<int>> q; int vis[41][41]; int r = grid.size(), c = grid[0].size(); for(int i=0;i<41;i++) for(int j=0;j<41;j++)vis[i][j]=-1;// x,y,path_length, #available remaining obstacles to remove ...
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 ...
LeetCode 1293. Shortest Path in a Grid with Obstacles Elimination 2019-12-16 16:24 −[题目](https://leetcode.com/problems/shortest-path-in-a-grid-with-obstacles-elimination/) 非常简单的BFS 暴搜 ``` struct Node { int x; int y; int k; int... ...
LeetCode: 865. Shortest Path to Get All Keys 题目描述 We are given a 2-dimensional grid. "." is an empty cell, "#" is a wall,"@" is the starting point, ("a","b", …) are keys, and...
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...
[LeetCode] 1129. Shortest Path with Alternating Colors Consider a directed graph, with nodes labelled0, 1, ..., n-1. In this graph, each edge is either red or blue, and there could be self-edges or parallel edges. Each[i, j]inred_edgesdenotes a red directed edge from nodeito node...
花花酱 LeetCode 2662. Minimum Cost of a Path With Special Roads 花花酱 LeetCode 2658. Maximum Number of Fish in a Grid 花花酱 LeetCode 2642. Design Graph With Shortest Path Calculator 花花酱 LeetCode 1061. Lexicographically Smallest Equivalent String ...
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 ...