GitHub Coding Interview Questions
We track 5 coding questions asked at GitHub, tagged with the algorithms and concepts they test. The most common: Hash Table, Math, Array, Bit Manipulation, Design.
Browse all 5 GitHub questions →Concept mix
Each question's weight is split evenly across its concepts, so the shares sum to 100%.
- Math40.0%
- Hash Table10.0%
- Dynamic Programming10.0%
- String10.0%
- Array5.0%
- Bit Manipulation5.0%
- Design5.0%
- Doubly-Linked List5.0%
- Linked List5.0%
- Sorting5.0%
How many questions involve each concept
Share of all 5 tracked GitHub questions that touch each concept. Questions usually involve several, so these overlap.
- Hash Table40.0%
- Math40.0%
- Array20.0%
- Bit Manipulation20.0%
- Design20.0%
- Doubly-Linked List20.0%
- Dynamic Programming20.0%
- Linked List20.0%
- Sorting20.0%
- String20.0%
Where GitHub differs from the average company
Concept weight at GitHub relative to the average across all companies we track. Green means GitHub leans on it harder than most.
- Math7.1×
- Hash Table1.5×
GitHub specialties
Concepts that show up at GitHub but are rarely asked elsewhere. They are easy to get blindsided by.
Difficulty mix
Level split of the 5 tracked GitHub questions.
- Junior40% (2)
- Mid/Senior40% (2)
- Staff20% (1)
Every concept in GitHub interviews
| Concept | Questions | % of questions | Share of mix |
|---|---|---|---|
| Hash Table | 2 | 40.0% | 10.0% |
| Math | 2 | 40.0% | 40.0% |
| Array | 1 | 20.0% | 5.0% |
| Bit Manipulation | 1 | 20.0% | 5.0% |
| Design | 1 | 20.0% | 5.0% |
| Doubly-Linked List | 1 | 20.0% | 5.0% |
| Dynamic Programming | 1 | 20.0% | 10.0% |
| Linked List | 1 | 20.0% | 5.0% |
| Sorting | 1 | 20.0% | 5.0% |
| String | 1 | 20.0% | 10.0% |
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