An undirected, connected graph of N nodes (labeled `0, 1, 2, ..., N-1`) is given as `graph`. graph ...
We are given a dimensional grid . . is an empty cell, isa wall, is the starting point, a , b , ... are keys, and A , B , ... are locks. We start at the starting point, and one move consists of walkin ...
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An undirected, connected graph of N nodes (labeled `0, 1, 2, ..., N-1`) is given as `graph`. graph ...
Consider a directed graph, with nodes labelled 0, 1, ..., n-1. In this graph, each edge is either ...
You are given an m x n integer matrix grid where each cell is either 0 (empty) or 1 (obstacle). Yo ...
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 ...
題目簡介:給定一個帶權有向圖,再給定圖中一個頂點(源點),求該點到其他所有點的最短距離,稱為單源最短路徑問題。 如下圖,求點1到其他各點的最短距離 准備工作:以下為該題所需要用到的數據 int N; //保存頂點個數 int M; //保存邊個數 int max; //用來設定 ...
LeetCode:訪問所有節點的最短路徑【847】 題目描述 給出 graph 為有 N 個節點(編號為 0, 1, 2, ..., N-1)的無向連通圖。 graph.length = N,且只有節點 i 和 j 連通時,j != i 在列表 graph[i] 中恰好出現一次。 返回 ...
可以走出去的所有路徑和最短的路徑。 BFS就是以一個起點,配合隊列,向四面八方進行搜索,搜過過了就更改 ...
給你一個 m * n 的網格,其中每個單元格不是 0(空)就是 1(障礙物)。每一步,您都可以在空白單元格中上、下、左、右移動。 如果您 最多 可以消除 k 個障礙物,請找出從左上角 (0, 0) 到右下角 (m-1, n-1) 的最短路徑,並返回通過該路徑所需的步數。如果找不到這樣的路徑 ...