You want to build a house on an empty land which reaches all buildings in the shortest amount of distance. You can only move up, down, left and right. You are given a 2D grid of values 0, 1 or 2, where: Each 0 marks an empty land which you can pass b…
原题链接在这里:https://leetcode.com/problems/shortest-distance-from-all-buildings/ 题目: You want to build a house on an empty land which reaches all buildings in the shortest amount of distance. You can only move up, down, left and right. You are given a 2D…
之前听朋友说LeetCode出了一道新题,但是一直在TLE,我就找时间做了一下.这题是一个比较典型的BFS的题目,自己匆忙写了一个答案,没有考虑优化的问题,应该是有更好的解法的. 原题如下: You want to build a house on an empty land which reaches all buildings in the shortest amount of distance. You can only move up, down, left and right. You…
542. 01 Matrix https://www.cnblogs.com/grandyang/p/6602288.html 将所有的1置为INT_MAX,然后用所有的0去更新原本位置为1的值. 最短距离肯定使用bfs. 每次更新了值的地方还要再加入队列中 . class Solution { public: vector<vector<int>> updateMatrix(vector<vector<int>>& matrix) { ].size…
Shortest Distance from All Buildings You want to build a house on an empty land which reaches all buildings in the shortest amount of distance. You can only move up, down, left and right. You are given a 2D grid of values 0, 1 or 2, where: Each 0 mar…
You want to build a house on an empty land which reaches all buildings in the shortest amount of distance. You can only move up, down, left and right. You are given a 2D grid of values 0, 1 or 2, where: Each 0 marks an empty land which you can pass b…
Given a string S and a character C, return an array of integers representing the shortest distance from the character C in the string. Example 1: Input: S = "loveleetcode", C = 'e' Output: [3, 2, 1, 0, 1, 0, 0, 1, 2, 2, 1, 0] Note: S string leng…
You want to build a house on an empty land which reaches all buildings in the shortest amount of distance. You can only move up, down, left and right. You are given a 2D grid of values 0, 1 or 2, where: Each 0 marks an empty land which you can pass b…
原题链接在这里:https://leetcode.com/problems/shortest-distance-from-all-buildings/ 题目: You want to build a house on an empty land which reaches all buildings in the shortest amount of distance. You can only move up, down, left and right. You are given a 2D…
题目: Given a string array words, find the maximum value of length(word[i]) * length(word[j]) where the two words do not share common letters. You may assume that each word will contain only lower case letters. If no such two words exist, return 0. Exa…