Welcome to STRIKE
Experience the future of coding education and streak building
Your Streak
Your Progress
Today's Challenge
Find two numbers that add up to a target sum
Daily Challenges
Two Sum
EasyGiven an array of integers, return indices of two numbers that add up to target.
Valid Parentheses
EasyDetermine if the input string has valid parentheses arrangement.
Longest Substring
MediumFind the length of the longest substring without repeating characters.
Binary Tree Traversal
MediumImplement inorder, preorder, and postorder traversal of binary tree.
Maximum Subarray
HardFind the contiguous subarray with the largest sum (Kadane's algorithm).
Graph Shortest Path
HardImplement Dijkstra's algorithm to find shortest path in weighted graph.
Build Real Projects
Learn by building production-ready applications
Todo App with React
Build a full-featured todo application with CRUD operations, local storage, and responsive design.
Weather Dashboard
Create a weather app using APIs, geolocation, and data visualization with charts.
E-commerce Platform
Full-stack e-commerce with user auth, payment integration, and admin dashboard.
Interview Preparation
Get ready for your dream job with comprehensive interview prep
Coding Interviews
Practice algorithmic problems commonly asked in technical interviews
System Design
Learn to design scalable systems with real-world examples and case studies
Behavioral Questions
Master the STAR method and practice common behavioral interview questions
Mock Interviews
Simulate real interview conditions with AI-powered feedback and scoring
Company Archives
Explore real interview experiences shared by candidates from top companies
Placement Roadmap
Step-by-step guide from basics to cracking top product-based company interviews
Company-Specific Preparation
Join the Community
Connect with fellow developers and grow together
Discussion Forums
Ask questions, share solutions, and help others in our active community
Study Groups
Form study groups with peers preparing for similar goals and companies
Competitions
Participate in weekly coding contests and hackathons with prizes
Mentorship
Get guidance from industry experts and experienced developers
Projects & Showcases
Share your projects, get feedback, and explore what others are building
Events & Webinars
Join live sessions with industry experts and boost your skills
Premium Courses
Master coding with our structured premium courses
DSA & Interview Preparation
Complete Data Structures & Algorithms course with interview preparation and mock interviews.
Generative AI
Build real-world AI applications using modern frameworks and deployment strategies.
Full Stack Development
Master modern web development with React, Node.js, and cloud deployment.
Cloud & DevOps
Learn AWS, Docker, Kubernetes and modern DevOps practices for scalable applications.
Mobile App Development
Build cross-platform mobile apps with React Native and Flutter frameworks.
System Design
Master system design concepts for senior developer and architect roles.
Global Leaderboard
See how you rank among the community
Start your journey and climb the leaderboard!