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Coding Challenges with AI Review
Pick a track, solve coding challenges in real time, and get instant AI feedback on your solutions.
React Professional
Hooks, state modeling, testing, performance, and architecture reviews.
- 1 Fundamentals + hooks
- 2 Debugging and optimization
- 3 System design for frontends
JavaScript Professional
Deep focus on the event loop, async patterns, and advanced language mechanics.
- 1 Core concepts + closures
- 2 Async workflows + testing
- 3 Architecture and tooling
Node.js Backend
APIs, scaling, observability, security, and production patterns.
- 1 Async + server fundamentals
- 2 API design and security
- 3 System design + scaling
System Design
High-level architecture, trade-offs, and reasoning under constraints.
- 1 Requirements gathering
- 2 Data flows and scaling
- 3 Bottlenecks and resilience
C++ Foundations
Syntax, types, control flow, and core C++ I/O fundamentals.
- 1 Basics + data types
- 2 Control flow + loops
- 3 Functions + arrays
C++ OOP
Classes, constructors, inheritance, and polymorphism.
- 1 Classes + constructors
- 2 Encapsulation + RAII
- 3 Inheritance + polymorphism
Modern C++
Smart pointers, move semantics, STL, templates, exceptions, and concurrency.
- 1 Smart pointers + RAII
- 2 Move semantics + templates
- 3 STL + concurrency
DSA Foundations
Arrays, strings, stacks, queues, and basic recursion.
- 1 Arrays + strings
- 2 Stacks + queues
- 3 Recursion basics
DSA Intermediate
Trees, graphs, hashing, and sliding window techniques.
- 1 Trees + BST
- 2 Graphs
- 3 Hashing + window
DSA Advanced
Dynamic programming, backtracking, advanced graphs, and strings.
- 1 DP basics
- 2 DP advanced
- 3 Backtracking + graphs