return its vertical order traversal as: [ [4], [9], [3,5,2], [20], [7] ] 二叉树的垂直遍历。 解法:如果一个node的column是 i,那么它的左子树column就是i - 1,右子树column就是i + 1。建立一个TreeColumnNode,包含一个TreeNode,以及一个column value,然后用level order traversal进行计算,并...
classSolution {public: vector<vector<int>> verticalOrder(TreeNode*root) { vector<vector<int>>res;if(!root)returnres; map<int, vector<int>>m; queue<pair<int, TreeNode*>>q; q.push({0, root});while(!q.empty()) { auto a=q.front(); q.pop(); m[a.first].push_back(a.second-...
力扣leetcode-cn.com/problems/vertical-order-traversal-of-a-binary-tree/ 题目描述 给你二叉树的根结点 root ,请你设计算法计算二叉树的 垂序遍历 序列。 对位于 (row, col) 的每个结点而言,其左右子结点分别位于 (row + 1, col - 1) 和 (row + 1, col + 1) 。树的根结点位于 (0, 0) 。
Problem Given a binary tree, return the vertical order traversal of its nodes' values. (ie, from top to bottom, column by column). If two nodes are in the same row and column, the order should be from left to right. Examples 1: Input: [3,9,20,null,null,15,7] 3 /\ / \ 9 ...
Binary Tree Vertical Order Traversal https://leetcode.com/problems/binary-tree-vertical-order-traversal/ 这道题让我们竖直的遍历树,和按层遍历非常相似。我第一次做的时候,使用的是递归的形式,发现顺序会出错。 因此还是要借助按层遍历的思路,将树逐层的加入一个队列,然后再取出来进行处理。 遍历的时候,...
Right, row + 1, col + 1, result) } type NodeInfo struct { col, row, val int } 题目链接: Vertical Order Traversal of a Binary Tree: leetcode.com/problems/v 二叉树的垂序遍历: leetcode.cn/problems/ve LeetCode 日更第 233 天,感谢阅读至此的你 欢迎点赞、收藏、在看鼓励支持小满...
Given therootof a binary tree, returnthe vertical order traversal of its nodes' values. (i.e., from top to bottom, column by column). If two nodes are in the same row and column, the order should be from left to right. Example 1: ...
Given a binary tree, return the vertical order traversal of its nodes' values. (ie, from top to bottom, column by column). If two nodes are in the same row and column, the order should be from left to right. 给定一个二叉树,返回其结点 垂直方向(从上到下,逐列)遍历的值。如果两个结点...
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0314 Binary Tree Vertical Order Traversal 52.0% Medium 0315 Count of Smaller Numbers After Self Go 42.8% Hard 0316 Remove Duplicate Letters 44.5% Medium 0317 Shortest Distance from All Buildings 43.0% Hard 0318 Maximum Product of Word Lengths Go 60.1% Medium 0319 Bulb Switcher Go 48.0% ...