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12
Total
8
Solved
2
Attempted
4
Easy
3
Medium
1
Hard
Showing 12 matching problems
| Status | Problem | Difficulty | Category | Attempts | Time | Last Attempt | Actions |
|---|---|---|---|---|---|---|---|
Two Sum Hash TableArrays | Easy | Arrays | 1 | 15 min | Feb 18, 2026 | ||
Add Two Numbers Linked ListMath | Medium | Linked List | 2 | 35 min | Feb 17, 2026 | ||
Longest Substring Without Repeating Characters Hash TableSliding Window | Medium | Strings | 3 | 1h 20m | Feb 15, 2026 | ||
Longest Palindromic Substring Dynamic ProgrammingStrings | Medium | Dynamic Programming | 1 | 45 min | Feb 14, 2026 | ||
Container With Most Water Two PointersArrays | Medium | Two Pointers | 1 | 20 min | Feb 13, 2026 | ||
3Sum Two PointersSorting | Medium | Two Pointers | 2 | 55 min | Feb 12, 2026 | ||
Valid Parentheses StackStrings | Easy | Stack | 1 | 10 min | Feb 11, 2026 | ||
Merge Two Sorted Lists Linked ListRecursion | Easy | Linked List | 1 | 12 min | Feb 10, 2026 | ||
Merge k Sorted Lists HeapLinked List+1 | Hard | Heap | 2 | 1h 5m | Feb 9, 2026 | ||
Climbing Stairs Dynamic ProgrammingMath | Easy | Dynamic Programming | 1 | 8 min | Feb 8, 2026 | ||
Median of Two Sorted Arrays Binary SearchArrays | Hard | Binary Search | - | - | - | ||
Regular Expression Matching Dynamic ProgrammingRecursion | Hard | Dynamic Programming | - | - | - |