Binary Tree Right Side View
Detailed guide and Python implementation for the 'Binary Tree Right Side View' problem.
Problem Statement
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.
The tree is represented as a level-order list. Implement a function rightSideView(root: list) -> list.
- •The number of nodes in the tree is in the range [0, 100]
- •-100 <= Node.val <= 100
Examples
[1,2,3,None,5,None,4]
[1,3,4]
From the right side: at level 0 you see 1, at level 1 you see 3, at level 2 you see 4.
[1,None,3]
[1,3]
From the right side: at level 0 you see 1, at level 1 you see 3.
[]
[]
Empty tree, nothing to see.
Need a Hint?
Edge Cases to Watch
- Empty input structures
- Single element inputs
- Large numerical bounds
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