DP - Strings
Total Problems: 10
Completed: 10 (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 | 0 | 0 | 0 | 0% |
| 🟡 Medium | 6 | 6 | 0 | 100% |
| 🔴 Hard | 4 | 4 | 0 | 100% |
Problems
| # | Problem | Difficulty | Status | Confidence |
|---|---|---|---|---|
| 237 | Interleaving String | M | ✅ | HGH |
| 238 | Longest Palindromic Subsequence | M | ✅ | MED |
| 239 | Delete Operation for Two Strings | M | ✅ | HGH |
| 240 | Shortest Common Supersequence | M | ✅ | HGH |
| 241 | Longest Common Subsequence | M | ✅ | HGH |
| 242 | Minimum Insertion Steps to Make a String Palindrome | M | ✅ | HGH |
| 243 | Regular Expression Matching | H | ✅ | LOW |
| 244 | Wildcard Matching | H | ✅ | HGH |
| 245 | Edit Distance | H | ✅ | HGH |
| 246 | Distinct Subsequences | H | ✅ | HGH |
Last Updated: 2026-02-13 19:40:00
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