Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1920 | Build Array from Permutation | Easy | ArraySimulation |
| 1921 | Eliminate Maximum Number of Monsters | Medium | ArrayGreedySorting |
| 1922 | Count Good Numbers | Medium | MathRecursion |
| 1923 | Longest Common Subpath | Hard | ArrayBinary SearchRolling Hash |
| 1924 | Erect the Fence II | Hard | ArrayMathGeometry |
| 1925 | Count Square Sum Triples | Easy | MathEnumeration |
| 1925 | Minimum Cost to Reach Destination in Time | Hard | ArrayDynamic ProgrammingGraph |
| 1926 | Nearest Exit from Entrance in Maze | Medium | ArrayBreadth-First SearchMatrix |
| 1927 | Sum Game | Medium | MathStringGreedy |
| 1929 | Concatenation of Array | Easy | ArraySimulation |
| 1929 | Merge BSTs to Create Single BST | Hard | Hash TableBinary SearchTree |
| 1930 | Unique Length-3 Palindromic Subsequences | Medium | Hash TableStringBit Manipulation |
| 1931 | Painting a Grid With Three Different Colors | Hard | Dynamic Programming |
| 1933 | Check if String Is Decomposable Into Value-Equal Substrings | Easy | String |
| 1934 | Confirmation Rate | Medium | Database |
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