classSolution {publicList<String>binaryTreePaths(TreeNode root) { List<String> results =newArrayList<>();if(root ==null) {returnresults; } binaryTreePath(results,"", root);returnresults; }publicvoidbinaryTreePath(List<String>results, String path, TreeNode cur) {//直接操作字符串if(cur.left ...
Given a binary tree, return all root-to-leaf paths. For example, given the following binary tree: 1 / \ 2 3 \ 5 All root-to-leaf paths are: ["1->2->5", "1->3"] 思路:用两个stack<TreeNode*> in , s; in : 记录当前的路径 p , 和vector<int>path 相同,只不过一个记录的是 ...
https://leetcode.com/problems/binary-tree-paths/ 题目: Given a binary tree, return all root-to-leaf paths. For example, given the following binary tree: 1 / \ 2 3 \ 5 All root-to-leaf paths are: ["1->2->5", "1->3"] 思路: 难点在于要 路径要作为参数传入 算法: List<String>...
right treePathsIn(node.right,rootpath+node.val) /** * Definition for a binary tree node. * type TreeNode struct { * Val int * Left *TreeNode * Right *TreeNode * } */ func binaryTreePaths(root *TreeNode) []string { if root==nil { return []string{} } s:=Solution{} if root...
1.Binary Tree Paths - 求二叉树路径 2.Same Tree - 判断二叉树相等 3.Symmetric Tree - 判断二叉树对称镜像 Binary Tree Paths 题目概述: Given a binary tree, return all root-to-leaf paths. For example, given the following binary tree:
/** * Definition for a binary tree node. * type TreeNode struct { * Val int * Left *TreeNode * Right *TreeNode * } */ func binaryTreePaths(root *TreeNode) []string { var res []string if root == nil { return res } dfs(root, "", &res) return res } func dfs(root *Tre...
Root To Leaf Binary Tree Paths Given a binary tree, return all root-to-leaf paths. 递归法 复杂度 时间 O(b^(h+1)-1) 空间 O(h) 递归栈空间 对于二叉树b...
* TreeNode(int x) { val = x; } * }*/publicclassSolution {publicList<String>binaryTreePaths(TreeNode root) { List<String> res =newArrayList<String>();if(root ==null){returnres; } dfs(root,newStringBuilder(), res);returnres;
LeetCode-257-二叉树的所有路径 二叉树的所有路径 题目描述：给定一个二叉树，返回所有从根节点到叶子节点的路径。说明: 叶子节点是指没有子节点的节点。示例说明请见LeetCode官网。来源：力扣（LeetCode）链接：https://leetcode-cn.com/problems/binary-tree-paths/著作权归领扣网络所有。商业转载请联系官方授权，...
package main /** 黄哥Python培训 黄哥所写 */ import ( "fmt" "strconv" "strings" "github.com/golang-collections/collections/stack" ) type TreeNode struct { Val int Left *TreeNode Right *TreeNode } func binaryTreePaths(root *TreeNode) []string { var result []string var pathstr string...