Practice problems across 75+ categories
Practice coding problems across all companies and topics • 3600 problems | 879 Easy | 1856 Medium | 842 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1426 | Immediate Food Delivery I | Easy | Database |
| 1427 | Immediate Food Delivery II | Medium | Database |
| 1428 | Immediate Food Delivery III | Medium | Database |
| 1429 | Immutability Helper | Hard | JavaScript |
| 1430 | Implement Magic Dictionary | Medium | Hash TableStringDepth-First Search |
| 1431 | Implement Queue using Stacks | Easy | StackDesignQueue |
| 1432 | Implement Rand10() Using Rand7() | Medium | MathRejection SamplingRandomized |
| 1433 | Implement Router | Medium | ArrayHash TableBinary Search |
| 1434 | Implement Stack using Queues | Easy | StackDesignQueue |
| 1435 | Implement Trie II (Prefix Tree) | Unknown | Hash TableStringDesign |
| 1436 | Implement Trie (Prefix Tree) | Medium | Hash TableStringDesign |
| 1437 | Increasing Decreasing String | Easy | Hash TableStringCounting |
| 1438 | Increasing Order Search Tree | Easy | StackTreeDepth-First Search |
| 1439 | Increasing Triplet Subsequence | Medium | ArrayGreedy |
| 1440 | Increment Submatrices by One | Medium | ArrayMatrixPrefix Sum |
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