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NotePaper-reader // CS101-Data-Structures

BATCH CODE: CS101-2026

📝 Teacher Editor (Markdown)

# Binary Search Trees

A **Binary Search Tree (BST)** is a node-based data structure:
- Left subtree contains nodes with keys < root
- Right subtree contains nodes with keys > root

```python
def search(root, key):
    if root is None or root.val == key:
        return root
    if root.val < key:
        return search(root.right, key)
    return search(root.left, key)
```

✨ Student Reader (Live View)

Binary Search Trees

A Binary Search Tree (BST) is a node-based data structure:

Left subtree contains nodes with keys < root
Right subtree contains nodes with keys > root

def search(root, key):
    if root is None or root.val == key:
        return root
    if root.val < key:
        return search(root.right, key)
    return search(root.left, key)

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