DSA · Theory

Handshaking Lemma and Interesting Tree Properties -DSA

Theory

252/810

Handshaking Lemma and Interesting Tree Properties -DSA

Handshaking Lemma and Interesting Tree Properties -DSA is a DSA topic. In plain words you use it for folder on disk in a file explorer. Don’t start with a slogan — start with that picture.

Smallest example: left < root < right. Type it, run it, and say what you see. If you can do that from memory, you know Handshaking Lemma and Interesting Tree Properties -DSA.

From the example next to this theory — Handshaking Lemma and Interesting Tree Properties -DSA: dry-run [4, 1, 3].

Trap — unbalanced BST becoming a list. Fix that before you talk about advanced DSA.

Viva: what is Handshaking Lemma and Interesting Tree Properties -DSA? Then show left < root < right. Then name the trap.

Exam tip

What is Handshaking Lemma and Interesting Tree Properties -DSA? Show this: left < root < right. Trap: unbalanced BST becoming a list.

Example

# Handshaking Lemma and Interesting Tree Properties -DSA
data = [4, 1, 3]
print("start", data)
if data[0] > data[1]:
    data[0], data[1] = data[1], data[0]
print("after one step", data)

Handshaking Lemma and Interesting Tree Properties -DSA: dry-run [4, 1, 3]. Say the list after one step.

Short notes

DefHandshaking Lemma and Interesting Tree Properties -DSA — folder on disk in a file explorer.
Ruleleft < root < right
Trapunbalanced BST becoming a list
Usea file explorer

DSA · Theory

Handshaking Lemma and Interesting Tree Properties -DSA

← All stacks

Theory

252/810

Handshaking Lemma and Interesting Tree Properties -DSA

Handshaking Lemma and Interesting Tree Properties -DSA is a DSA topic. In plain words you use it for folder on disk in a file explorer. Don’t start with a slogan — start with that picture.

Smallest example: left < root < right. Type it, run it, and say what you see. If you can do that from memory, you know Handshaking Lemma and Interesting Tree Properties -DSA.

From the example next to this theory — Handshaking Lemma and Interesting Tree Properties -DSA: dry-run [4, 1, 3].

Trap — unbalanced BST becoming a list. Fix that before you talk about advanced DSA.

Viva: what is Handshaking Lemma and Interesting Tree Properties -DSA? Then show left < root < right. Then name the trap.

Exam tip

What is Handshaking Lemma and Interesting Tree Properties -DSA? Show this: left < root < right. Trap: unbalanced BST becoming a list.

Example

# Handshaking Lemma and Interesting Tree Properties -DSA
data = [4, 1, 3]
print("start", data)
if data[0] > data[1]:
    data[0], data[1] = data[1], data[0]
print("after one step", data)

Handshaking Lemma and Interesting Tree Properties -DSA: dry-run [4, 1, 3]. Say the list after one step.

Short notes

DefHandshaking Lemma and Interesting Tree Properties -DSA — folder on disk in a file explorer.
Ruleleft < root < right
Trapunbalanced BST becoming a list
Usea file explorer

Handshaking Lemma and Interesting Tree Properties -DSA

Example

Short notes

Questions

Handshaking Lemma and Interesting Tree Properties -DSA

Example

Short notes

Questions