原题地址：https://oj.leetcode.com/problems/simplify-path/ 题意： Given an absolute path for a file (Unix-style), simplify it. For example,path = "/home ...

Given an absolute path for a file (Unix-style), simplify it. For example,path = "/home/", => "/home"path = "/a/./b/../../c/", => "/c ...

题目： Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given ...

题目： Given a binary tree and a sum, find all root-to-leaf paths where each path's sum equals the given sum. For example: Given the below binary ...

题目： Given a binary tree, find the maximum path sum. The path may start and end at any node in the tree. For example: Given the below binary ...

Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum. ...

原题地址：https://oj.leetcode.com/problems/path-sum/ 题意： Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding ...

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 ...