Day 12 of 30Logic & Data Structures

🎯Tuples & Sets

🎯 Today's objective

Use fixed sequences (tuples) and unique collections (sets).

📖 Key concepts

Tuples are ordered & immutable: (lat, lon)
Sets are unordered & unique: {1, 2, 3}
Sets remove duplicates fast
Set ops: union |, intersection &

💻 Try this code

point = (26.07, 87.94)   # tuple (can't change)
tags = {"py", "ai", "py"}
print(tags)              # {'py', 'ai'} - duplicate gone
print({1,2,3} & {2,3,4}) # {2, 3}

👥 Learn it your way

🧒 Young Explorers

A tuple is a locked box (can’t change); a set is a bag that ignores duplicates.

Your task

From a list with repeats, make a set to find the unique items.

💼 Professionals

Use tuples for fixed records/coords and as dict keys; sets for fast membership tests.

Your task

Given two lists of skills, print skills common to both and skills unique to each.

🤖 AI connection

Sets power deduplication and vocabulary building (the unique words a model knows). Tuples often carry fixed feature vectors / coordinates.

✅ Quick check

What makes a tuple different from a list?

Tuples are immutable (cannot be changed).

What does a set automatically remove?

Duplicate values.