Package g1101_1200.s1104_path_in_zigzag_labelled_binary_tree

Class Solution

java.lang.Object
g1101_1200.s1104_path_in_zigzag_labelled_binary_tree.Solution
public class Solution extends java.lang.Object
1104 - Path In Zigzag Labelled Binary Tree.

Medium

In an infinite binary tree where every node has two children, the nodes are labelled in row order.

In the odd numbered rows (ie., the first, third, fifth,…), the labelling is left to right, while in the even numbered rows (second, fourth, sixth,…), the labelling is right to left.

Given the label of a node in this tree, return the labels in the path from the root of the tree to the node with that label.

Example 1:

Input: label = 14

Output: [1,3,4,14]

Example 2:

Input: label = 26

Output: [1,2,6,10,26]

Constraints:

  • 1 <= label <= 10^6

  • Constructor Summary Link icon

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary Link icon

    Modifier and Type
    Method
    Description
    java.util.List<java.lang.Integer>
    pathInZigZagTree(int label)
     

    Methods inherited from class java.lang.Object Link icon

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details Link icon

    • Solution Link icon

      public Solution()

  • Method Details Link icon

    • pathInZigZagTree Link icon

      public java.util.List<java.lang.Integer> pathInZigZagTree(int label)