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PhonePe / Razorpay Fintech SDE Sheet
Stack, Queue & Linked List
10 problems
problem
Topic Progress0 / 10 solved
Problem List
Work through the problems in sequence to build topic mastery.
| Problem | Difficulty | Status | Optional | Action |
|---|---|---|---|---|
| Valid Parentheses | Medium | Unsolved | Required | |
| Min Stack | Medium | Unsolved | Required | |
| Evaluate Reverse Polish Notation | Medium | Unsolved | Required | |
| Simplify Path | Medium | Unsolved | Required | |
| Number Of Recent Calls | Medium | Unsolved | Required | |
| Implement Queue Using Stacks | Medium | Unsolved | Required | |
| Reverse Linked List | Medium | Unsolved | Required | |
| Merge Two Sorted Lists | Medium | Unsolved | Required | |
| Linked List Cycle | Medium | Unsolved | Required | |
| Remove Nth Node From End Of List | Medium | Unsolved | Required |
Topic Snapshot
A compact summary of what this sheet section covers and how far you have progressed.
Stack, Queue & Linked List
Cover request-window queues, parsing stacks, and list operations that test careful state handling.
fintech
phonepe
Completion
0%
Problems Remaining
10
Optional Problems
0
Complete the required items first, then use optional problems for extra depth.