Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 241 | Build an Array With Stack Operations | Medium | ArrayStackSimulation |
| 242 | Build Array from Permutation | Easy | ArraySimulation |
| 243 | Build Array Where You Can Find The Maximum Exactly K Comparisons | Hard | Dynamic ProgrammingPrefix Sum |
| 244 | Build Binary Expression Tree From Infix Expression | Hard | StringStackTree |
| 245 | Build the Equation | Hard | Database |
| 246 | Building Boxes | Hard | MathBinary SearchGreedy |
| 247 | Building H2O | Medium | Concurrency |
| 248 | Buildings With an Ocean View | Medium | ArrayStackMonotonic Stack |
| 249 | Bulb Switcher | Medium | MathBrainteaser |
| 250 | Bulb Switcher II | Medium | MathBit ManipulationDepth-First Search |
| 251 | Bulls and Cows | Medium | Hash TableStringCounting |
| 252 | Burst Balloons | Hard | ArrayDynamic Programming |
| 253 | Bus Routes | Hard | ArrayHash TableBreadth-First Search |
| 254 | Button with Longest Push Time | Easy | Array |
| 255 | Buy Two Chocolates | Easy | ArrayGreedySorting |
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