DSA · Theory

Difference between Binary Tree and Binary Search Tree

Theory

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Difference between Binary Tree and Binary Search Tree

If you can teach Difference between Binary Tree and Binary Search Tree using folder on disk, you know it. If you only know the heading, you don’t.

For Difference between Binary Tree and Binary Search Tree, a dry-run table is in play. Don’t blame it until you have traced folder on disk.

Skip Difference between Binary Tree and Binary Search Tree and unbalanced BST becoming a list shows up in a file explorer.

Use Difference between Binary Tree and Binary Search Tree when folder on disk must stay clear. If a simpler DSA step works, use that instead.

Difference between Binary Tree and Binary Search Tree miss: unbalanced BST becoming a list. Fix it before you talk about advanced DSA.

After Difference between Binary Tree and Binary Search Tree, Ananya should still remember unbalanced BST becoming a list.

Close Difference between Binary Tree and Binary Search Tree with: “If I skip it, folder on disk goes wrong like this: unbalanced BST becoming a list.”

Diagram

Exam tip

For Difference between Binary Tree and Binary Search Tree: definition + a file explorer + one failure.

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))

Difference between Binary Tree and Binary Search Tree — binary search halves a sorted array each step — O(log n).

Short notes

DefDifference between Binary Tree and Binary Search Tree — Ananya uses it for folder on disk in a file explorer.
RuleDifference between Binary Tree and Binary Search Tree → left < root < right.
RememberDifference between Binary Tree and Binary Search Tree + a dry-run table (a file explorer).
UseDifference between Binary Tree and Binary Search Tree in a file explorer (folder on disk).
TrapDifference between Binary Tree and Binary Search Tree — unbalanced BST becoming a list.
ExDifference between Binary Tree and 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))

Difference between Binary Tree and Binary Search Tree

Example

Short notes

Questions

Difference between Binary Tree and Binary Search Tree

Example

Short notes

Questions