Practice problems across 75+ categories
Practice problems frequently asked at Google • 3407 problems | 851 Easy | 1775 Medium | 761 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1906 | Maximum Sum of Almost Unique Subarray | Medium | ArrayHash TableSliding Window |
| 1907 | Maximum Sum of an Hourglass | Medium | ArrayMatrixPrefix Sum |
| 1908 | Maximum Sum of Distinct Subarrays With Length K | Medium | ArrayHash TableSliding Window |
| 1909 | Maximum Sum of Edge Values in a Graph | Hard | MathGreedyGraph |
| 1910 | Maximum Sum of Subsequence With Non-adjacent Elements | Hard | ArrayDivide and ConquerDynamic Programming |
| 1911 | Maximum Sum of Two Non-Overlapping Subarrays | Medium | ArrayDynamic ProgrammingSliding Window |
| 1912 | Maximum Sum Queries | Hard | ArrayBinary SearchStack |
| 1913 | Maximum Sum Score of Array | Medium | ArrayPrefix Sum |
| 1914 | Maximum Sum With at Most K Elements | Medium | ArrayGreedySorting |
| 1915 | Maximum Sum With Exactly K Elements | Easy | ArrayGreedy |
| 1916 | Maximum Swap | Medium | MathGreedy |
| 1917 | Maximum Tastiness of Candy Basket | Medium | ArrayBinary SearchGreedy |
| 1918 | Maximum Total Area Occupied by Pistons | Hard | ArrayHash TableString |
| 1919 | Maximum Total Damage With Spell Casting | Medium | ArrayHash TableTwo Pointers |
| 1920 | Maximum Total Importance of Roads | Medium | GreedyGraphSorting |
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