Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1980 | Find Unique Binary String | Medium | ArrayHash TableString |
| 1981 | Minimize the Difference Between Target and Chosen Elements | Medium | ArrayDynamic ProgrammingMatrix |
| 1982 | Find Array Given Subset Sums | Hard | ArrayDivide and Conquer |
| 1983 | Widest Pair of Indices With Equal Range Sum | Medium | ArrayHash TablePrefix Sum |
| 1984 | Minimum Difference Between Highest and Lowest of K Scores | Easy | ArraySliding WindowSorting |
| 1985 | Find the Kth Largest Integer in the Array | Medium | ArrayStringDivide and Conquer |
| 1986 | Minimum Number of Work Sessions to Finish the Tasks | Medium | ArrayDynamic ProgrammingBacktracking |
| 1987 | Number of Unique Good Subsequences | Hard | StringDynamic Programming |
| 1988 | Find Cutoff Score for Each School | Medium | Database |
| 1989 | Maximum Number of People That Can Be Caught in Tag | Medium | ArrayGreedy |
| 1990 | Count the Number of Experiments | Medium | Database |
| 1991 | Find the Middle Index in Array | Easy | ArrayPrefix Sum |
| 1992 | Find All Groups of Farmland | Medium | ArrayDepth-First SearchBreadth-First Search |
| 1993 | Operations on Tree | Medium | ArrayHash TableTree |
| 1994 | The Number of Good Subsets | Hard | ArrayHash TableMath |
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