Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 211 | Coordinate With Maximum Network Quality | Medium | ArrayEnumeration |
| 212 | Corporate Flight Bookings | Medium | ArrayPrefix Sum |
| 213 | Count All Possible Routes | Hard | ArrayDynamic ProgrammingMemoization |
| 214 | Count Almost Equal Pairs I | Medium | ArrayHash TableSorting |
| 215 | Count Almost Equal Pairs II | Hard | ArrayHash TableSorting |
| 216 | Count Alternating Subarrays | Medium | ArrayMath |
| 217 | Count Array Pairs Divisible by K | Hard | ArrayMathNumber Theory |
| 218 | Count Artifacts That Can Be Extracted | Medium | ArrayHash TableSimulation |
| 219 | Count Beautiful Splits in an Array | Medium | ArrayDynamic Programming |
| 220 | Count Cells in Overlapping Horizontal and Vertical Substrings | Medium | ArrayStringRolling Hash |
| 221 | Count Common Words With One Occurrence | Easy | ArrayHash TableString |
| 222 | Count Complete Subarrays in an Array | Medium | ArrayHash TableSliding Window |
| 223 | Count Connected Components in LCM Graph | Hard | ArrayHash TableMath |
| 224 | Count Covered Buildings | Medium | ArrayHash TableSorting |
| 225 | Count Days Without Meetings | Medium | ArraySorting |
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