Practice problems across 75+ categories
Practice problems frequently asked at Amazon • 3399 problems | 851 Easy | 1772 Medium | 756 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 211 | Bulb Switcher II | Medium | MathBit ManipulationDepth-First Search |
| 212 | Bulls and Cows | Medium | Hash TableStringCounting |
| 213 | Burst Balloons | Hard | ArrayDynamic Programming |
| 214 | Bus Routes | Hard | ArrayHash TableBreadth-First Search |
| 215 | Button with Longest Push Time | Easy | Array |
| 216 | Buy Two Chocolates | Easy | ArrayGreedySorting |
| 217 | Cache With Time Limit | Medium | JavaScript |
| 218 | Calculate Amount Paid in Taxes | Easy | ArraySimulation |
| 219 | Calculate Compressed Mean | Easy | Database |
| 220 | Calculate Delayed Arrival Time | Easy | Math |
| 221 | Calculate Digit Sum of a String | Easy | StringSimulation |
| 222 | Calculate Money in Leetcode Bank | Easy | Math |
| 223 | Calculate Orders Within Each Interval | Medium | Database |
| 224 | Calculate Parking Fees and Duration | Medium | Database |
| 225 | Calculate Product Final Price | Medium | Database |
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