Classroom Mode

Learn Coding
Together

Join a live quiz your instructor is running with a simple code. No hosting setup on your side. Compete on data structures & algorithms in real time.

Arrays

Strings

Linked Lists

Trees & BST

Graphs

Dynamic Programming

Sorting Algorithms

Searching

Recursion

Hash Tables

Stacks & Queues

Bit Manipulation

Arrays

Strings

Linked Lists

Trees & BST

Graphs

Dynamic Programming

Sorting Algorithms

Searching

Recursion

Hash Tables

Stacks & Queues

Bit Manipulation

Arrays

Strings

Linked Lists

Trees & BST

Graphs

Dynamic Programming

Sorting Algorithms

Searching

Recursion

Hash Tables

Stacks & Queues

Bit Manipulation

Math & Logic

Mixed Topics

Implementation

Greedy

Two Pointers

Binary Search

Divide & Conquer

Number Theory

Combinatorics

Geometry

Data Structures

Interactive

Math & Logic

Mixed Topics

Implementation

Greedy

Two Pointers

Binary Search

Divide & Conquer

Number Theory

Combinatorics

Geometry

Data Structures

Interactive

Math & Logic

Mixed Topics

Implementation

Greedy

Two Pointers

Binary Search

Divide & Conquer

Number Theory

Combinatorics

Geometry

Data Structures

Interactive

Why Classroom Mode?

Practice data structures and algorithms in a fast, live quiz format.

Real-Time Competition

Everyone answers simultaneously. See live results and leaderboards update instantly.

60+ Questions

Covering arrays, trees, graphs, DP, sorting, and more. Multiple question types.

Gamified Learning

Points, streaks, and leaderboards make learning data structures fun!

Customizable

Pick topics, difficulty levels, and question count for your session.

Timed Challenges

Faster answers earn more points. Perfect for building quick thinking skills.

No Setup Required

Students join with a simple 6-digit code. No accounts needed to play.

How It Works

From the code your teacher shares to the final leaderboard in four quick steps.

Have a game code?

Enter the code from your instructor and jump into the live quiz.

Join with Code