[LeetCode]71. Simplify Path 解题报告(Python) 标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.me/ 题目地址:https://leetcode.com/problems/simplify-path/description/ 题目描述: Given an absolute path for a file (Unix-style), simplify it. For e…

Simplify Path Given an absolute path for a file (Unix-style), simplify it. For example,path = "/home/", => "/home"path = "/a/./b/../../c/", => "/c" click to show corner cases. Corner Cases: Did you consider th…

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作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址: https://leetcode.com/problems/shortest-path-visiting-all-nodes/description/ 题目描述: An undirected, connected graph of N nodes (labeled 0, 1, 2, ..., N-1) is given as graph. graph.length = N,…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 日期 题目地址:https://leetcode.com/problems/minimum-path-sum/description/ 题目描述 Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which mi…

Minimum Path Sum Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path. Note: You can only move either down or right at any point in time. 解题思路: 典型的动态规划.开辟…

题目: Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path. Note: You can only move either down or right at any point in time. 题解: Solution 1 () class Solut…

简单粗暴,代码有待优化,不过自己独立完成,没有参考任何材料,还是比较满意的 package y2019.Algorithm.stack.medium; import java.util.Stack; /** * @Auther: xiaof * @Date: 2019/12/6 09:06 * @Description:331. 验证二叉树的前序序列化 * * 序列化二叉树的一种方法是使用前序遍历.当我们遇到一个非空节点时,我们可以记录下这个节点的值.如果它是一个空节点, * 我们可以使用一个标…

题目如下: Consider a directed graph, with nodes labelled 0, 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] in red_edges denotes a red directed edge from node i to node j.  Simila…

题目如下: 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 C_{i+1} are connected 8-…