Practice problems across 75+ categories
Practice problems frequently asked at Meta • 2900 problems | 652 Easy | 1528 Medium | 703 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 796 | Find Closest Node to Given Two Nodes | Medium | Depth-First SearchGraph |
| 797 | Find Closest Person | Easy | Math |
| 798 | Find Common Elements Between Two Arrays | Easy | ArrayHash Table |
| 799 | Find Consecutive Integers from a Data Stream | Medium | Hash TableDesignQueue |
| 800 | Find Consistently Improving Employees | Medium | Database |
| 801 | Find COVID Recovery Patients | Medium | Database |
| 802 | Find Customer Referee | Easy | Database |
| 803 | Find Customers With Positive Revenue this Year | Easy | Database |
| 804 | Find Cutoff Score for Each School | Medium | Database |
| 805 | Find Distance in a Binary Tree | Medium | Hash TableTreeDepth-First Search |
| 806 | Find Duplicate Subtrees | Medium | Hash TableTreeDepth-First Search |
| 807 | Find Edges in Shortest Paths | Hard | Depth-First SearchBreadth-First SearchGraph |
| 808 | Find Elements in a Contaminated Binary Tree | Medium | Hash TableTreeDepth-First Search |
| 809 | Find Eventual Safe States | Medium | Depth-First SearchBreadth-First SearchGraph |
| 810 | Find Expensive Cities | Easy | Database |
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