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PhonePe / Razorpay Fintech SDE Sheet
| Problem | Difficulty | Status | Optional | Action |
|---|---|---|---|---|
| Valid Palindrome | Medium | Unsolved | Required | |
| Longest Palindrome | Medium | Unsolved | Required | |
| Longest Substring Without Repeating Characters | Medium | Unsolved | Required | |
| Minimum Window Substring | Medium | Unsolved | Required | |
| Find All Anagrams In A String | Medium | Unsolved | Required | |
| Permutation in String | Medium | Unsolved | Required | |
| Longest Repeating Character Replacement | Medium | Unsolved | Required | |
| String to Integer (atoi) | Medium | Unsolved | Required | |
| Add Binary | Medium | Unsolved | Required | |
| Roman To Integer | Medium | Unsolved | Required |
Strings & Validation
Practice validation-heavy strings, windows, palindrome state, and parsing details.
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Problems Remaining
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Optional Problems
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