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A fintech-style product-company sheet for PhonePe, Razorpay, and similar teams, focused on correctness, maps, intervals, heaps, design APIs, and graph fundamentals.
Total Problems
66
Estimated Time
9 weeks
Completed
0 / 66
1. Arrays & Hashing
0 / 12 solved
2. Strings & Validation
0 / 10 solved
3. Stack, Queue & Linked List
0 / 10 solved
4. Intervals, Heaps & Scheduling
0 / 10 solved
5. Trees & Graphs
0 / 12 solved
6. DP, Design & Math
0 / 12 solved