Robinhood LeetCode Questions
15 questions all-time · 3 easy · 11 medium · 1 hard
| # | Problem | Difficulty | Frequency | Acceptance |
|---|---|---|---|---|
| 1 | Ways to Split Array Into Three Subarrays Array, Two Pointers, Binary Search, Prefix Sum | Medium | 100 | 0.3% |
| 2 | Restore the Array From Adjacent Pairs Array, Hash Table, Depth-First Search | Medium | 100 | 0.8% |
| 3 | Brightest Position on Street Array, Sorting, Prefix Sum, Ordered Set | Medium | 98 | 0.6% |
| 4 | Count Good Meals Array, Hash Table | Medium | 98 | 0.3% |
| 5 | Number of Orders in the Backlog Array, Heap (Priority Queue), Simulation | Medium | 98 | 0.5% |
| 6 | Check if There is a Valid Path in a Grid Array, Depth-First Search, Breadth-First Search, Union-Find, Matrix | Medium | 98 | 0.6% |
| 7 | Capital Gain/Loss Database | Medium | 98 | 0.8% |
| 8 | Count the Number of Consistent Strings Array, Hash Table, String, Bit Manipulation, Counting | Easy | 98 | 0.9% |
| 9 | Top K Frequent Words Array, Hash Table, String, Trie, Sorting, Heap (Priority Queue), Bucket Sort, Counting | Medium | 98 | 0.6% |
| 10 | Text Justification Array, String, Simulation | Hard | 89 | 0.5% |
| 11 | Minesweeper Array, Depth-First Search, Breadth-First Search, Matrix | Medium | 76 | 0.7% |
| 12 | Top K Frequent Elements Array, Hash Table, Divide and Conquer, Sorting, Heap (Priority Queue), Bucket Sort, Counting, Quickselect | Medium | 69 | 0.7% |
| 13 | Employee Importance Array, Hash Table, Tree, Depth-First Search, Breadth-First Search | Medium | 69 | 0.7% |
| 14 | Best Time to Buy and Sell Stock Array, Dynamic Programming | Easy | 60 | 0.6% |
| 15 | Defanging an IP Address String | Easy | 60 | 0.9% |
How to read this list
The tabs at the top split the questions by how recently people said they were asked in interviews. "Last 30 Days" is the past month, "Last 3 Months" is the past quarter, and so on. "All Time" is every question on record for this company.
Frequency is a score from 0 to 100 for how often a question showed up in that time window. A higher number means it came up more often, so the list starts with the most common questions first. Acceptance is the share of submissions that pass on LeetCode. Click any question to open it on LeetCode.