DSA · Theory

Remove BST keys outside the given range in Java language

Theory

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Remove BST keys outside the given range in Java language

If you can teach Remove BST keys outside the given range in Java language using folder on disk, you know it. If you only know the heading, you don’t.

Remove BST keys outside the given range in Java language on the board: left < root < right. Then say what folder on disk looks like after.

Without Remove BST keys outside the given range in Java language, a file explorer gets messy and folder on disk is hard to trust.

Asha ships Remove BST keys outside the given range in Java language in a file explorer. That is the use case worth saying.

Remove BST keys outside the given range in Java language trap: unbalanced BST becoming a list. Asha loses marks for that every viva.

Remove BST keys outside the given range in Java language is not a lonely heading. Asha ties it to folder on disk.

Close Remove BST keys outside the given range in Java language with: “If I skip it, folder on disk goes wrong like this: unbalanced BST becoming a list.”

Diagram

Exam tip

Say Remove BST keys outside the given range in Java language in one breath, then left < root < right, then unbalanced BST becoming a list.

Example

class Node:
    def __init__(self, val):
        self.val = val
        self.left = None
        self.right = None

def insert(root, val):
    if root is None:
        return Node(val)
    if val < root.val:
        root.left = insert(root.left, val)
    elif val > root.val:
        root.right = insert(root.right, val)
    return root

root = None
for v in [5, 2, 7, 1]:
    root = insert(root, v)
print(root.val, root.left.val, root.right.val)

Remove BST keys outside the given range in Java language — bST invariant: left < node < right — enables log-time search when balanced.

Short notes

DefRemove BST keys outside the given range in Java language — Asha uses it for folder on disk in a file explorer.
RuleRemove BST keys outside the given range in Java language → left < root < right.
RememberRemove BST keys outside the given range in Java language + time vs memory (a file explorer).
UseRemove BST keys outside the given range in Java language in a file explorer (folder on disk).
TrapRemove BST keys outside the given range in Java language — unbalanced BST becoming a list.
ExRemove BST keys outside the given range in Java language → folder on disk.

class Node: def __init__(self, val): self.val = val self.left = None self.right = None def insert(root, val): if root is None: return Node(val) if val < root.val: root.left = insert(root.left, val) elif val > root.val: root.right = insert(root.right, val) return root root = None for v in [5, 2, 7, 1]: root = insert(root, v) print(root.val, root.left.val, root.right.val)

Remove BST keys outside the given range in Java language

Example

Short notes

Questions

Remove BST keys outside the given range in Java language

Example

Short notes

Questions