Practice problems across 75+ categories
Practice problems frequently asked at Amazon • 3399 problems | 851 Easy | 1772 Medium | 756 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 781 | Different Ways to Add Parentheses | Medium | MathStringDynamic Programming |
| 782 | Digit Count in Range | Hard | MathDynamic Programming |
| 783 | Digit Operations to Make Two Integers Equal | Medium | MathGraphHeap (Priority Queue) |
| 784 | Dinner Plate Stacks | Hard | Hash TableStackDesign |
| 785 | Disconnect Path in a Binary Matrix by at Most One Flip | Medium | ArrayDynamic ProgrammingDepth-First Search |
| 786 | Display Table of Food Orders in a Restaurant | Medium | ArrayHash TableString |
| 787 | Distance Between Bus Stops | Easy | Array |
| 788 | Distance to a Cycle in Undirected Graph | Hard | Depth-First SearchBreadth-First SearchUnion Find |
| 789 | Distant Barcodes | Medium | ArrayHash TableGreedy |
| 790 | Distinct Echo Substrings | Hard | StringTrieRolling Hash |
| 791 | Distinct Numbers in Each Subarray | Medium | ArrayHash TableSliding Window |
| 792 | Distinct Prime Factors of Product of Array | Medium | ArrayHash TableMath |
| 793 | Distinct Subsequences II | Hard | StringDynamic Programming |
| 794 | Distribute Candies | Easy | ArrayHash Table |
| 795 | Distribute Candies Among Children I | Easy | MathCombinatoricsEnumeration |
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