Practice problems across 75+ categories
Practice problems frequently asked at Google • 3407 problems | 851 Easy | 1775 Medium | 761 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 421 | Convert BST to Greater Tree | Medium | TreeDepth-First SearchBinary Search Tree |
| 422 | Convert Callback Based Function to Promise Based Function | Medium | JavaScript |
| 423 | Convert Date Format | Easy | Database |
| 424 | Convert Date to Binary | Easy | MathString |
| 425 | Convert Doubly Linked List to Array I | Easy | ArrayLinked ListDoubly-Linked List |
| 426 | Convert Doubly Linked List to Array II | Medium | ArrayLinked ListDoubly-Linked List |
| 427 | Convert Integer to the Sum of Two No-Zero Integers | Easy | Math |
| 428 | Convert JSON String to Object | Hard | JavaScript |
| 429 | Convert Object to JSON String | Medium | JavaScript |
| 430 | Convert Sorted Array to Binary Search Tree | Easy | ArrayDivide and ConquerTree |
| 431 | Convert the Temperature | Easy | Math |
| 432 | Convert to Base -2 | Unknown | Math |
| 433 | Convex Polygon | Medium | ArrayMathGeometry |
| 434 | Coordinate With Maximum Network Quality | Medium | ArrayEnumeration |
| 435 | Copy List with Random Pointer | Medium | Hash TableLinked List |
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