Practice problems across 75+ categories
Practice problems frequently asked at Greedy • 420 problems | 48 Easy | 281 Medium | 91 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 16 | Balance a Binary Search Tree | Medium | Divide and ConquerGreedyTree |
| 17 | Best Time to Buy and Sell Stock II | Medium | ArrayDynamic ProgrammingGreedy |
| 18 | Best Time to Buy and Sell Stock with Transaction Fee | Medium | ArrayDynamic ProgrammingGreedy |
| 19 | Boats to Save People | Medium | ArrayTwo PointersGreedy |
| 20 | Break a Palindrome | Medium | StringGreedy |
| 21 | Broken Calculator | Medium | MathGreedy |
| 22 | Building Boxes | Hard | MathBinary SearchGreedy |
| 23 | Buy Two Chocolates | Easy | ArrayGreedySorting |
| 24 | Can Place Flowers | Easy | ArrayGreedy |
| 25 | Candy | Hard | ArrayGreedy |
| 26 | Check if a Parentheses String Can Be Valid | Medium | StringStackGreedy |
| 27 | Check If a String Can Break Another String | Medium | StringGreedySorting |
| 28 | Check if it is Possible to Split Array | Medium | ArrayDynamic ProgrammingGreedy |
| 29 | Check If String Is Transformable With Substring Sort Operations | Hard | StringGreedySorting |
| 30 | Cinema Seat Allocation | Medium | ArrayHash TableGreedy |
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