PYTHON PROBLEM 288 · Interview-Level

View a binary tree from the right: Left-only tree

A left child is visible when no node exists farther right on its level.

tree · BFS · company screentreeBFScompany screen

PROBLEM OVERVIEW

What this Python exercise asks you to practise

This scenario tests view a binary tree from the right. It belongs to the Trees and Tries roadmap and uses the tree · bfs · company screen pattern.

Traversal, recursion on hierarchies, binary-search-tree rules, prefix lookup, and subtree reasoning.

COMPLETE WORKSPACE

Learn the plan, trace the logic and run the solution

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SKILL TO CARRY FORWARD

Pattern relevance

This exercise strengthens tree · bfs · company screen. Be ready to explain the input, the rule, the boundary cases, and why the chosen approach is appropriate.