Practice problems across 75+ categories
Practice problems frequently asked at Google • 3407 problems | 851 Easy | 1775 Medium | 761 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2371 | Number of Beautiful Partitions | Hard | StringDynamic ProgrammingPrefix Sum |
| 2372 | Number of Bit Changes to Make Two Integers Equal | Easy | Bit Manipulation |
| 2373 | Number of Black Blocks | Medium | ArrayHash TableEnumeration |
| 2374 | Number of Boomerangs | Medium | ArrayHash TableMath |
| 2375 | Number of Burgers with No Waste of Ingredients | Medium | Math |
| 2376 | Number of Calls Between Two Persons | Medium | Database |
| 2377 | Number of Changing Keys | Easy | String |
| 2378 | Number of Closed Islands | Medium | ArrayDepth-First SearchBreadth-First Search |
| 2379 | Number of Comments per Post | Easy | Database |
| 2380 | Number of Common Factors | Easy | MathEnumerationNumber Theory |
| 2381 | Number of Connected Components in an Undirected Graph | Medium | Depth-First SearchBreadth-First SearchUnion Find |
| 2382 | Number Of Corner Rectangles | Medium | ArrayMathDynamic Programming |
| 2383 | Number of Days Between Two Dates | Easy | MathString |
| 2384 | Number of Days in a Month | Easy | Math |
| 2385 | Number of Dice Rolls With Target Sum | Medium | Dynamic Programming |
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