Too many platforms = practicing nowhere. Match the site to your stage.
The ranking
- 1. Our DSA Judge (start here): 24 curated problems with instant feedback, zero setup, exactly the placement-level difficulty
- 2. HackerRank: gentlest ramp; company-specific kits (TCS, Infosys use it for actual tests — familiarity helps)
- 3. LeetCode: the industry standard. Filter Easy + "Top Interview 150". Ignore Hard until product-company interviews
- 4. freeCodeCamp: not DSA — full web dev curriculum with certificates that are actually respected
- 5. GeeksforGeeks Practice: best for company-wise previous questions (search "TCS coding questions GFG")
- 6. Codeforces/CodeChef: competitive programming — only if you enjoy contests; overkill for service companies
- 7. SQLBolt + HackerRank SQL: the SQL round everyone forgets to prep
The schedule that works
1 problem/day beats 10 on Sunday. 30 minutes: 20 solving, 10 reading a better solution than yours — the reading is where growth happens.
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