Practice problems across 75+ categories
Practice problems frequently asked at Meta • 2900 problems | 652 Easy | 1528 Medium | 703 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 586 | Delete Columns to Make Sorted III | Hard | ArrayStringDynamic Programming |
| 587 | Delete Duplicate Emails | Easy | Database |
| 588 | Delete Greatest Value in Each Row | Easy | ArraySortingHeap (Priority Queue) |
| 589 | Delete Node in a BST | Medium | TreeBinary Search TreeBinary Tree |
| 590 | Delete Nodes From Linked List Present in Array | Medium | ArrayHash TableLinked List |
| 591 | Delete Operation for Two Strings | Medium | StringDynamic Programming |
| 592 | Delete the Middle Node of a Linked List | Medium | Linked ListTwo Pointers |
| 593 | Delete Tree Nodes | Medium | ArrayTreeDepth-First Search |
| 594 | Delivering Boxes from Storage to Ports | Hard | ArrayDynamic ProgrammingSegment Tree |
| 595 | Department Top Three Salaries | Hard | Database |
| 596 | Depth of BST Given Insertion Order | Medium | ArrayTreeBinary Search Tree |
| 597 | Describe the Painting | Medium | ArrayHash TableSorting |
| 598 | Design a 3D Binary Matrix with Efficient Layer Tracking | Medium | ArrayHash TableDesign |
| 599 | Design a File Sharing System | Medium | Hash TableDesignSorting |
| 600 | Design a Food Rating System | Medium | ArrayHash TableString |
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