Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 3691 | Stack Using Array | Easy | Data StructuresStackArray |
| 3692 | Queue Using Array | Easy | Data StructuresQueueArray |
| 3693 | Expression Evaluator | Easy | Data StructuresStackParsing |
| 3694 | Phone Book (HashMap) | Easy | Data StructuresHashMapCRUD |
| 3695 | Unique Elements Counter | Easy | Data StructuresSetArray |
| 3696 | Undo Text Editor | Easy | Data StructuresStackString |
| 3697 | Shopping Cart | Easy | Data StructuresList/ArrayStruct |
| 3698 | Student Record Manager | Easy | Data StructuresStruct/ClassArray |
| 3699 | Circular Buffer | Easy | Data StructuresArrayModulo |
| 3700 | Frequency-Based Sorting | Easy | Data StructuresHashMapSorting |
| 3701 | Regex Pattern Matcher | Medium | Advanced StringsStringPattern |
| 3702 | Log File Analyzer | Medium | Advanced StringsStringParsing |
| 3703 | Morse Code Translator | Medium | Advanced StringsStringHashMap |
| 3704 | Markdown to Plain Text | Medium | Advanced StringsStringParsing |
| 3705 | DNA Sequence Analyzer | Medium | Advanced StringsStringSliding Window |
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