Inorder Traversal
Inorder traversal visits nodes in Left-Root-Right order. For BST, this gives sorted output.
BeginnerTime: O(n)Space: O(h)
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## How Inorder Traversal Works
Inorder traversal visits nodes in the order: Left subtree -> Root -> Right subtree. For Binary Search Trees, this produces nodes in sorted (ascending) order.
### Algorithm Steps:
1. Recursively traverse the left subtree
2. Visit the current node (process/print it)
3. Recursively traverse the right subtree
### Key Characteristics:
- **Sorted output for BST**: Visits nodes in ascending order
- **Stack-based**: Uses call stack or explicit stack
- **O(n) time**: Visits each node exactly once
Time & Space Complexity
| Case | Time Complexity |
|---|---|
| Best | O(n) |
| Average | O(n) |
| Worst | O(n) |
| Space | O(h) |
Practice Problems
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