LeetCode
The problem bank Indian tech interviews are still built on.
Whatever you think of the format, most product-company interviews in India still sample from LeetCode-style problems. Company tags, contest ratings and editorial solutions make it the most efficient place to prepare.
The highest-return path is pattern-based: work through curated lists like Blind 75 or NeetCode 150 by pattern rather than grinding problems at random.
What it's genuinely good at
- Largest problem bank with quality editorials
- Company-wise tags mirror real interview loops
- Weekly contests build time pressure tolerance
- Active discussion threads per problem
Where it falls apart
- Premium paywalls the most useful company filters
- Rewards memorisation if used carelessly
- Says little about real engineering ability
Alternatives to LeetCode
Who should use LeetCode
- Product-company interview preparation
- Contest practice for speed under pressure
- Structured DSA revision by pattern
What it costs
Free access to most problems; Premium around $35/month or $159/year unlocks company tags, sorted frequency lists and premium problems.
Frequently asked
How many problems are enough?
Roughly 150–250 well-understood problems across patterns beats 600 half-remembered ones.
Is Premium necessary?
Only in the final weeks before a specific company's interview, when frequency-sorted company lists genuinely help.