Classic hash-map problem — bucket strings by their sorted form, then return the buckets. Hindi line-by-line commentary, code, and a discussion of when you should use frequency-tuple keys instead of sorted-string keys.
This free course is built for BTech / BE / BSc / MCA students preparing for campus placements at Amazon, Microsoft, Google, Adobe, Flipkart, Razorpay and similar Indian product companies; also professionals targeting switch interviews. If you have ever Googled group anagrams — hindi hash-map solution and bounced off paid-subscription paywalls or content that assumes you already know everything — this is the course for you.
This page is part of our flagship free course, Blind 75 LeetCode. The full course is delivered as short, focused lessons, each with bilingual narration (English and Hinglish), interactive practice widgets, and a clear before-and-after so you can feel yourself getting better. You can pause for weeks and pick up exactly where you left off — your progress is saved.
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Blind 75 was assembled by an experienced interviewer specifically to cover every pattern that appears in SDE interviews — no duplicates, no fluff. It is the most efficient list for placement prep.
Both. Each lesson has a Hindi narration track for the explanation and English-only code with comments.
Every solution is provided in all three. Use the one your placement allows. If unsure, start with Python (cleanest), switch to C++ if you target high-frequency-trading or systems roles.
4-6 weeks if you do 2 problems a day with the in-browser editor and re-do tough ones.
Yes — 100% free, like every Techwave course.
Click below to open Blind 75 LeetCode. You will land on the course dashboard, see the week-by-week plan, and can start Lesson 1 immediately. No trial period, no payment screen, no upgrade pop-ups — ever.