https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree/discuss/143752/JAVA-Graph-%2B-BFS https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree/discuss/143775/very-easy-to-understand-c%2B%2B-solution. https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree...
We are given a binary tree (with root node root), a target node, and an integer value K. Return a list of the values of all nodes that have a distance K from the target node. The answer can be returned in any order. Example1: Input: root = [3,5,1,6,2,0,8,null,null,7,4...
Convert tree to indirect graph, then use BFS to get K distance from target. Error: Do not fully understand the BFS, when wants to get smallest distance, or K distance, it is very useful to think about it.
Can you solve this real interview question? All Nodes Distance K in Binary Tree - Given the root of a binary tree, the value of a target node target, and an integer k, return an array of the values of all nodes that have a distance k from the target node
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// 以 node 开始的,长度为 totalDistance 的节点vardistance=function(node,curDistance,totalDistance){console.log(node.val,curDistance,totalDistance)if(node){if(curDistance===totalDistance){return[node.val]}letresult=[]if(node.left){const leftResult=distance(node.left,curDistance+1,totalDistance)re...
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[leetcode] 863. All Nodes Distance K in Binary Tree Description We are given a binary tree (with root node root), a target node, and an integer value K. Return a list of the values of all nodes that have a distance K from the target node. The answer ca... ...
给定一个二叉树(具有根结点 root), 一个目标结点 target ,和一个整数值 K 。 返回到目标结点 target 距离为 K 的所有结点的值的列表。 答案可以以任何顺序返回。 来源:力扣(LeetCode) 链接:https://leetcode-cn.com/problems/all-nodes-distance-k-in-binary-tree ...