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PhonePe DSA Interview Questions

Accelerate your fintech interview preparation with the definitive PhonePe DSA preparation sheet, custom-engineered for freshers, SDE-1, and SDE-2 aspirants. PhonePe's hyper-scale transaction infrastructure demands highly optimized algorithmic logic capable of managing massive real-time UPI checkouts, microservices dependency flows, and high-concurrency ledger balances. This verified problem set contains 50 of the most frequently asked PhonePe coding interview questions across mission-critical archetypes—including transactional dynamic programming, graph-based routing paths, multi-heap data stream handlers, and thread-safe design structures. Equipped with direct LeetCode and GeeksforGeeks links alongside candidate frequency tags, this sheet is optimized to maximize user engagement and organic search value for your site.

50 Problems
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Overall Progress

0/50

1. Coin Change
LeetCode•
•
Very Hot
2. Network Delay Time
LeetCode•
•
Very Hot
3. LRU Cache
LeetCode•
•
Very Hot
12. Two Sum
LeetCode•
•
Hot
14. Word Break
LeetCode•
•
Hot
29. Subsets
LeetCode•
•
Warm
39. 3Sum
LeetCode•
•
Hot
42. Decode Ways
LeetCode•
•
Warm
46. Word Search
LeetCode•
•
Warm
49. Permutations
LeetCode•
•
Warm