Box Coding Interview Questions
We track 8 coding questions asked at Box, tagged with the algorithms and concepts they test. The most common: Breadth-First Search, Hash Table, String, Array, Depth-First Search.
Browse all 8 Box questions →Concept mix
Each question's weight is split evenly across its concepts, so the shares sum to 100%.
- Breadth-First Search13.5%
- Dynamic Programming12.5%
- Hash Table8.9%
- String8.9%
- Depth-First Search6.2%
- Bit Manipulation6.2%
- Divide and Conquer6.2%
- Array5.7%
- Math4.2%
- Two Pointers4.2%
- Other (10)23.5%
How many questions involve each concept
Share of all 8 tracked Box questions that touch each concept. Questions usually involve several, so these overlap.
- Breadth-First Search50.0%
- Hash Table37.5%
- String37.5%
- Array25.0%
- Depth-First Search25.0%
- Backtracking12.5%
- Binary Tree12.5%
- Bit Manipulation12.5%
- Bucket Sort12.5%
- Counting12.5%
- Divide and Conquer12.5%
- Dynamic Programming12.5%
Where Box differs from the average company
Concept weight at Box relative to the average across all companies we track. Green means Box leans on it harder than most.
- Breadth-First Search6.1×
- Depth-First Search2.7×
- Hash Table1.3×
- Array0.30×
Box specialties
Concepts that show up at Box but are rarely asked elsewhere. They are easy to get blindsided by.
Difficulty mix
Level split of the 8 tracked Box questions.
- Junior25% (2)
- Mid/Senior50% (4)
- Staff25% (2)
Every concept in Box interviews
| Concept | Questions | % of questions | Share of mix |
|---|---|---|---|
| Breadth-First Search | 4 | 50.0% | 13.5% |
| Hash Table | 3 | 37.5% | 8.9% |
| String | 3 | 37.5% | 8.9% |
| Array | 2 | 25.0% | 5.7% |
| Depth-First Search | 2 | 25.0% | 6.2% |
| Backtracking | 1 | 12.5% | 3.1% |
| Binary Tree | 1 | 12.5% | 3.1% |
| Bit Manipulation | 1 | 12.5% | 6.2% |
| Bucket Sort | 1 | 12.5% | 1.6% |
| Counting | 1 | 12.5% | 1.6% |
| Divide and Conquer | 1 | 12.5% | 6.2% |
| Dynamic Programming | 1 | 12.5% | 12.5% |
| Graph Theory | 1 | 12.5% | 3.1% |
| Heap (Priority Queue) | 1 | 12.5% | 1.6% |
| Math | 1 | 12.5% | 4.2% |
| Sorting | 1 | 12.5% | 1.6% |
| Tree | 1 | 12.5% | 3.1% |
| Trie | 1 | 12.5% | 1.6% |
| Two Pointers | 1 | 12.5% | 4.2% |
| Union-Find | 1 | 12.5% | 3.1% |
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