Linked Lists
Total Problems: 14
Completed: 14 (100%)
📚 Pattern Master Notes
This comprehensive guide includes: - 🧠 Pattern recognition & problem-solving mindset - 🎯 Sub-patterns and variations - 🏆 Golden templates and code examples - ⚠️ Common pitfalls and debugging tips - 📊 Decision trees and quick reference tables
💡 Tip: Read the notes before starting problems to build intuition!
Progress by Difficulty
| Difficulty | Total | Completed | Remaining | Percentage |
|---|---|---|---|---|
| 🟢 Easy | 5 | 5 | 0 | 100% |
| 🟡 Medium | 7 | 7 | 0 | 100% |
| 🔴 Hard | 2 | 2 | 0 | 100% |
Problems
| # | Problem | Difficulty | Status | Confidence |
|---|---|---|---|---|
| 87 | Merge Two Sorted Lists | E | ✅ | HGH |
| 88 | Linked List Cycle | E | ✅ | HGH |
| 89 | Remove Linked List Elements | E | ✅ | MED |
| 90 | Reverse Linked List | E | ✅ | HGH |
| 91 | Palindrome Linked List | E | ✅ | HGH |
| 92 | Add Two Numbers | M | ✅ | HGH |
| 93 | Remove Nth Node From End of List | M | ✅ | HGH |
| 94 | Rotate List | M | ✅ | HGH |
| 95 | Copy List with Random Pointer | M | ✅ | MED |
| 96 | Reorder List | M | ✅ | HGH |
| 97 | Sort List | M | ✅ | HGH |
| 98 | Odd Even Linked List | M | ✅ | HGH |
| 99 | Merge k Sorted Lists | H | ✅ | MED |
| 100 | Reverse Nodes in k-Group | H | ✅ | LOW |
Last Updated: 2026-02-13 19:40:00
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