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145. Binary Tree Postorder Traversal

Problem Details

  • 🔗 Link: https://leetcode.com/problems/binary-tree-postorder-traversal/
  • 📊 Difficulty: Medium
  • 🏷️ Category: Binary Trees - Traversal
  • 💪 Confidence: high

📋 Problem Statement

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Examples

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Constraints

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🚫 Approach 1 — Brute Force

Thought Process

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Algorithm / Pseudocode

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Code

// Add your Java code here

Time & Space Complexity

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✅ Approach 2 — Optimal

Thought Process

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Algorithm / Pseudocode

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Code

// Add your optimal Java code here

Time & Space Complexity

[Add complexity analysis]

🔄 Weekly Quick Revision

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