java.lang.Object
g0101_0200.s0199_binary_tree_right_side_view.Solution

public class Solution extends java.lang.Object
199 - Binary Tree Right Side View.

Medium

Given the root of a binary tree, imagine yourself standing on the right side of it, return the values of the nodes you can see ordered from top to bottom.

Example 1:

Input: root = [1,2,3,null,5,null,4]

Output: [1,3,4]

Example 2:

Input: root = [1,null,3]

Output: [1,3]

Example 3:

Input: root = []

Output: []

Constraints:

  • The number of nodes in the tree is in the range [0, 100].
  • -100 <= Node.val <= 100
  • Constructor Summary

    Constructors
    Constructor
    Description
     
  • Method Summary

    Modifier and Type
    Method
    Description
    java.util.List<java.lang.Integer>
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  • Constructor Details

    • Solution

      public Solution()
  • Method Details

    • rightSideView

      public java.util.List<java.lang.Integer> rightSideView(TreeNode root)