Practice problems across 75+ categories
Practice problems frequently asked at Array • 1947 problems | 398 Easy | 1049 Medium | 497 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1471 | Number of Ways to Split Array | Medium | ArrayPrefix Sum |
| 1472 | Number of Ways to Wear Different Hats to Each Other | Hard | ArrayDynamic ProgrammingBit Manipulation |
| 1473 | Number of Ways Where Square of Number Is Equal to Product of Two Numbers | Medium | ArrayHash TableMath |
| 1474 | Number of Zero-Filled Subarrays | Medium | ArrayMath |
| 1475 | Numbers At Most N Given Digit Set | Hard | ArrayMathString |
| 1476 | Odd Even Jump | Hard | ArrayDynamic ProgrammingStack |
| 1477 | Odd String Difference | Easy | ArrayHash TableString |
| 1478 | Once Twice | Medium | ArrayBit Manipulation |
| 1479 | Ones and Zeroes | Medium | ArrayStringDynamic Programming |
| 1480 | Online Election | Medium | ArrayHash TableBinary Search |
| 1481 | Online Majority Element In Subarray | Hard | ArrayBinary SearchDesign |
| 1482 | Open the Lock | Medium | ArrayHash TableString |
| 1483 | Operations on Tree | Medium | ArrayHash TableTree |
| 1484 | Optimal Account Balancing | Hard | ArrayDynamic ProgrammingBacktracking |
| 1485 | Optimal Division | Medium | ArrayMathDynamic Programming |
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