Practice problems across 75+ categories
Practice problems frequently asked at Math • 596 problems | 150 Easy | 283 Medium | 161 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 31 | Basic Calculator | Hard | MathStringStack |
| 32 | Basic Calculator II | Medium | MathStringStack |
| 33 | Basic Calculator III | Hard | MathStringStack |
| 34 | Basic Calculator IV | Hard | Hash TableMathString |
| 35 | Beautiful Arrangement II | Medium | ArrayMath |
| 36 | Beautiful Array | Medium | ArrayMathDivide and Conquer |
| 37 | Beautiful Pairs | Hard | ArrayMathDivide and Conquer |
| 38 | Best Meeting Point | Hard | ArrayMathSorting |
| 39 | Best Position for a Service Centre | Hard | ArrayMathGeometry |
| 40 | Bitwise OR of All Subsequence Sums | Medium | ArrayMathBit Manipulation |
| 41 | Broken Calculator | Medium | MathGreedy |
| 42 | Building Boxes | Hard | MathBinary SearchGreedy |
| 43 | Bulb Switcher | Medium | MathBrainteaser |
| 44 | Bulb Switcher II | Medium | MathBit ManipulationDepth-First Search |
| 45 | Calculate Delayed Arrival Time | Easy | Math |
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