Practice problems across 75+ categories
Practice problems frequently asked at Math • 596 problems | 150 Easy | 283 Medium | 161 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 376 | Moving Stones Until Consecutive | Medium | MathBrainteaser |
| 377 | Moving Stones Until Consecutive II | Medium | ArrayMathSliding Window |
| 378 | Multiply Strings | Medium | MathStringSimulation |
| 379 | Multiply Two Polynomials | Hard | ArrayMath |
| 380 | N-th Tribonacci Number | Easy | MathDynamic ProgrammingMemoization |
| 381 | New 21 Game | Medium | MathDynamic ProgrammingSliding Window |
| 382 | Next Greater Element III | Medium | MathTwo PointersString |
| 383 | Next Greater Numerically Balanced Number | Medium | Hash TableMathBacktracking |
| 384 | Nim Game | Easy | MathBrainteaserGame Theory |
| 385 | Nth Digit | Medium | MathBinary Search |
| 386 | Nth Magical Number | Hard | MathBinary Search |
| 387 | Number of Beautiful Integers in the Range | Hard | MathDynamic Programming |
| 388 | Number of Beautiful Pairs | Easy | ArrayHash TableMath |
| 389 | Number of Boomerangs | Medium | ArrayHash TableMath |
| 390 | Number of Burgers with No Waste of Ingredients | Medium | Math |
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