Practice problems across 75+ categories
Practice problems frequently asked at Math • 596 problems | 150 Easy | 283 Medium | 161 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 511 | Rotate Image | Medium | ArrayMathMatrix |
| 512 | Rotated Digits | Medium | MathDynamic Programming |
| 513 | RSA Key Generation | Hard | CryptographyMathPrimes |
| 514 | Self Crossing | Hard | ArrayMathGeometry |
| 515 | Self Dividing Numbers | Easy | Math |
| 516 | Sell Diminishing-Valued Colored Balls | Medium | ArrayMathBinary Search |
| 517 | Shuffle an Array | Medium | ArrayMathDesign |
| 518 | Sign of the Product of an Array | Easy | ArrayMath |
| 519 | Similar RGB Color | Easy | MathStringEnumeration |
| 520 | Simplified Fractions | Medium | MathStringNumber Theory |
| 521 | Smallest Divisible Digit Product I | Easy | MathEnumeration |
| 522 | Smallest Divisible Digit Product II | Hard | MathStringBacktracking |
| 523 | Smallest Even Multiple | Easy | MathNumber Theory |
| 524 | Smallest Good Base | Hard | MathBinary Search |
| 525 | Smallest Greater Multiple Made of Two Digits | Medium | MathEnumeration |
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