DSA · Theory

Remove all leaf nodes from the binary search tree

Theory

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Remove all leaf nodes from the binary search tree

Don’t start Remove all leaf nodes from the binary search tree with jargon. Start with folder on disk. That is the whole point.

Remove all leaf nodes from the binary search tree order: meaning → left < root < right → one limit. Dumping ten features helps nobody.

Skip Remove all leaf nodes from the binary search tree and unbalanced BST becoming a list shows up in a file explorer.

Remove all leaf nodes from the binary search tree shows up in a file explorer. Name folder on disk, not “a real-world scenario”.

If folder on disk breaks under Remove all leaf nodes from the binary search tree, check unbalanced BST becoming a list first.

Place Remove all leaf nodes from the binary search tree next to nearby DSA work — left < root < right is the link.

Viva for Remove all leaf nodes from the binary search tree: what it is → left < root < right → the mistake (unbalanced BST becoming a list).

Diagram

Exam tip

Board: folder on disk. Dry-run Remove all leaf nodes from the binary search tree. Name the trap: unbalanced BST becoming a list.

Example

def binary_search(arr, target):
    lo, hi = 0, len(arr) - 1
    while lo <= hi:
        mid = (lo + hi) // 2
        if arr[mid] == target:
            return mid
        if arr[mid] < target:
            lo = mid + 1
        else:
            hi = mid - 1
    return -1

print(binary_search([1, 3, 5, 7, 9], 7))

Remove all leaf nodes from the binary search tree — binary search halves a sorted array each step — O(log n).

Short notes

DefRemove all leaf nodes from the binary search tree — Vikram uses it for folder on disk in a file explorer.
RuleRemove all leaf nodes from the binary search tree → left < root < right.
RememberRemove all leaf nodes from the binary search tree + Big-O (a file explorer).
UseRemove all leaf nodes from the binary search tree in a file explorer (folder on disk).
TrapRemove all leaf nodes from the binary search tree — unbalanced BST becoming a list.
ExRemove all leaf nodes from the binary search tree → folder on disk.

def binary_search(arr, target): lo, hi = 0, len(arr) - 1 while lo <= hi: mid = (lo + hi) // 2 if arr[mid] == target: return mid if arr[mid] < target: lo = mid + 1 else: hi = mid - 1 return -1 print(binary_search([1, 3, 5, 7, 9], 7))

Remove all leaf nodes from the binary search tree

Example

Short notes

Questions

Remove all leaf nodes from the binary search tree

Example

Short notes

Questions