Flipkart Interview Prep

Flipkart’s interview process for SDE-2+ includes 2 DSA rounds, 1 machine coding round (90 minutes), and 1-2 system design rounds. The machine coding round expects clean OOP with design patterns and a running demo. System design rounds focus on e-commerce scale - feeds, notifications, and URL shortening at millions of QPS.

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HLD Problems Asked at Flipkart

#	Problem	Difficulty	Link
1	URL Shortener	🟡 Intermediate	Read →
2	Twitter / Social Feed	🟡 Intermediate	Read →
3	Notification System	🟡 Intermediate	Read →

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LLD Problems Asked at Flipkart

#	Problem	Difficulty	Link
1	Parking Lot	🟢 Beginner	Read →
2	Splitwise	🟡 Intermediate	Read →

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DSA Problems Frequently Asked at Flipkart

#	Problem	Pattern	Link
1	Merge K Sorted Lists	Heap / Divide & Conquer	Solve →
2	Longest Substring Without Repeating	Sliding Window	Solve →
3	Coin Change	Dynamic Programming	Solve →
4	Kth Largest Element	Quick Select / Heap	Solve →
5	Rotting Oranges	BFS on Grid	Solve →
6	Clone Graph	BFS/DFS + HashMap	LeetCode →
7	Word Break	DP + Trie	Solve →
8	Next Greater Element	Monotonic Stack	LeetCode →
9	Flatten Nested List Iterator	Stack / Recursion	LeetCode →
10	Edit Distance	2D DP	Solve →

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Tips for Flipkart Interviews

1. Nail the machine coding round first. Flipkart rejects many candidates at this stage. Focus on Strategy pattern, clean separation of concerns, and a working demo.
2. Think at e-commerce scale. Discuss flash sales, inventory locking, and fan-out patterns. Flipkart loves candidates who understand read-heavy vs write-heavy tradeoffs.
3. Discuss caching strategies. CDN caching, Redis invalidation, and cache stampede protection are frequently probed in system design rounds.
4. Prepare for follow-up depth. Flipkart interviewers often ask “what breaks at 10x scale?” - have answers ready for hot partitions and celebrity problems.

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