Practice problems across 75+ categories
Practice problems frequently asked at Amazon • 3399 problems | 851 Easy | 1772 Medium | 756 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 2356 | Number Complement | Easy | Bit Manipulation |
| 2357 | Number of 1 Bits | Easy | Divide and ConquerBit Manipulation |
| 2358 | Number of Accounts That Did Not Stream | Medium | Database |
| 2359 | Number of Adjacent Elements With the Same Color | Medium | Array |
| 2360 | Number of Arithmetic Triplets | Easy | ArrayHash TableTwo Pointers |
| 2361 | Number of Atoms | Hard | Hash TableStringStack |
| 2362 | Number of Beautiful Integers in the Range | Hard | MathDynamic Programming |
| 2363 | Number of Beautiful Pairs | Easy | ArrayHash TableMath |
| 2364 | Number of Beautiful Partitions | Hard | StringDynamic ProgrammingPrefix Sum |
| 2365 | Number of Bit Changes to Make Two Integers Equal | Easy | Bit Manipulation |
| 2366 | Number of Black Blocks | Medium | ArrayHash TableEnumeration |
| 2367 | Number of Boomerangs | Medium | ArrayHash TableMath |
| 2368 | Number of Burgers with No Waste of Ingredients | Medium | Math |
| 2369 | Number of Calls Between Two Persons | Medium | Database |
| 2370 | Number of Changing Keys | Easy | String |
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