Practice problems across 75+ categories
Practice problems frequently asked at Amazon • 3399 problems | 851 Easy | 1772 Medium | 756 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 1336 | Increment Submatrices by One | Medium | ArrayMatrixPrefix Sum |
| 1337 | Incremental Memory Leak | Medium | MathSimulation |
| 1338 | Index Pairs of a String | Easy | ArrayStringTrie |
| 1339 | Infinite Method Object | Easy | JavaScript |
| 1340 | Inorder Successor in BST | Medium | TreeDepth-First SearchBinary Search Tree |
| 1341 | Inorder Successor in BST II | Medium | TreeBinary Search TreeBinary Tree |
| 1342 | Insert Delete GetRandom O(1) | Medium | ArrayHash TableMath |
| 1343 | Insert Delete GetRandom O(1) - Duplicates allowed | Hard | ArrayHash TableMath |
| 1344 | Insert Greatest Common Divisors in Linked List | Medium | Linked ListMathNumber Theory |
| 1345 | Insert Interval | Medium | Array |
| 1346 | Insert into a Binary Search Tree | Medium | TreeBinary Search TreeBinary Tree |
| 1347 | Insert into a Sorted Circular Linked List | Medium | Linked List |
| 1348 | Insertion Sort List | Medium | Linked ListSorting |
| 1349 | Insufficient Nodes in Root to Leaf Paths | Medium | TreeDepth-First SearchBinary Tree |
| 1350 | Integer Break | Medium | MathDynamic Programming |
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