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...
var verticalTraversal = function(root) { const nodes = []; dfs(root, 0, 0, nodes); nodes.sort((tuple1, tuple2) => { if (tuple1[0] !== tuple2[0]) { return tuple1[0] - tuple2[0]; } else if (tuple1[1] !== tuple2[1]) { return tuple1[1] - tuple2[1]; } else ...
The vertical order traversal of a binary tree is a list of top-to-bottom orderings for each column index starting from the leftmost column and ending on the rightmost column. There may be multiple nodes in the same row and same column. In such a case, sort these nodes by their values....
* type TreeNode struct { * Val int * Left *TreeNode * Right *TreeNode * } */ func verticalTraversal(root *TreeNode) [][]int { // 先用 dfs 收集所有结点的坐标和值 var result []*NodeInfo dfs(root, 0, 0, &result) // 然后按列升序排序,再按层升序排序,最后按值升序排序 sort.Slice...
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...
Binary Tree Vertical Order Traversal Swift Medium ★★★ Alien Dictionary Swift Hard ★★★ One Edit Distance Swift Medium ★★★ Sudoku Solver Swift Hard ★★★ Reverse Linked List Swift Easy ★★ Unique Binary Search Trees Swift Medium ★★ Minimum Window Substring Swift Hard ★★ Remove ...
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N-ary Tree Level Order Traversal 【题目】 Given an n-ary tree, return the level order traversal of its nodes’ values. (ie, from left to right, level by level). For example, given a 3-ary tree: We should return its level order traversal: 代码语言:javascript 代码运行次数:0 运行...
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