215+ DSA Problems with Pattern-Based Solutions
W Code offers 215+ carefully curated Data Structures and Algorithms problems organized by 23 core algorithmic patterns. Unlike random problem lists, our pattern-based approach helps you recognize and solve 90% of interview questions asked at top companies.
Definition
W Code DSA Problems is a free, pattern-based coding practice platform designed for Indian students preparing for campus placements at TCS, Infosys, Wipro, Cognizant, and FAANG companies. Unlike LeetCode's random approach, W Code organizes 215+ problems by 23 core algorithmic patterns that cover 90% of interview questions.
The 23 Core Algorithmic Patterns
According to W Code's analysis of 5,000+ placement interviews, these 23 patterns appear in 90% of technical coding rounds:
W Code vs LeetCode: Which is Better?
| Feature | W Code | LeetCode |
|---|---|---|
| Pattern-based learning | ✓ 23 patterns | ✗ Random |
| Indian placement focus | ✓ TCS, Infosys, Wipro | ✗ Global only |
| Aptitude preparation | ✓ Included | ✗ Not available |
| CS Theory notes | ✓ OS, DBMS, CN, OOPs | ✗ Not available |
| Free forever (core) | ✓ Yes | Partial |
Frequently Asked Questions
How many DSA problems are on W Code?
W Code offers 215+ carefully curated DSA problems organized by 23 algorithmic patterns. Each problem includes detailed solutions in multiple programming languages (Python, Java, C++, JavaScript).
Is W Code free to use?
Yes, all 215+ DSA problems, theory content, and aptitude preparation on W Code are 100% free. Pro features like unlimited ATS resume scans and AI mock interviews are available through subscription.
Which companies can I prepare for using W Code?
W Code has specialized tracks for TCS NQT (Ninja, Digital, Prime), Infosys (InfyTQ, HackWithInfy), Wipro NLTH & Elite, Cognizant GenC, product companies (Flipkart, Razorpay), and FAANG/MAANG interviews.
How long does it take to complete W Code's DSA course?
With 2-3 hours of daily practice following W Code's pattern-based approach, most students become interview-ready in 8-12 weeks. The structured curriculum ensures you cover all essential patterns without wasting time on redundant problems.
"The key to cracking DSA interviews isn't solving 500 LeetCode problems—it's recognizing the 23 patterns that repeat across 90% of questions."— Bhanu Bisht, Founder of W Code
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