Comcast Coding Interview Questions
We track 6 coding questions asked at Comcast, tagged with the algorithms and concepts they test. The most common: Array, String, Hash Table, Breadth-First Search, Depth-First Search.
Browse all 6 Comcast questions →Concept mix
Each question's weight is split evenly across its concepts, so the shares sum to 100%.
- String22.2%
- Array20.0%
- Hash Table13.9%
- Dynamic Programming8.3%
- Stack8.3%
- Two Pointers8.3%
- Sliding Window5.6%
- Breadth-First Search3.3%
- Depth-First Search3.3%
- Matrix3.3%
- Other (1)3.3%
How many questions involve each concept
Share of all 6 tracked Comcast questions that touch each concept. Questions usually involve several, so these overlap.
- Array50.0%
- String50.0%
- Hash Table33.3%
- Breadth-First Search16.7%
- Depth-First Search16.7%
- Dynamic Programming16.7%
- Matrix16.7%
- Sliding Window16.7%
- Stack16.7%
- Two Pointers16.7%
- Union-Find16.7%
Where Comcast differs from the average company
Concept weight at Comcast relative to the average across all companies we track. Green means Comcast leans on it harder than most.
- String2.3×
- Hash Table2.1×
Comcast specialties
Concepts that show up at Comcast but are rarely asked elsewhere. They are easy to get blindsided by.
Difficulty mix
Level split of the 6 tracked Comcast questions.
- Junior67% (4)
- Mid/Senior33% (2)
Every concept in Comcast interviews
| Concept | Questions | % of questions | Share of mix |
|---|---|---|---|
| Array | 3 | 50.0% | 20.0% |
| String | 3 | 50.0% | 22.2% |
| Hash Table | 2 | 33.3% | 13.9% |
| Breadth-First Search | 1 | 16.7% | 3.3% |
| Depth-First Search | 1 | 16.7% | 3.3% |
| Dynamic Programming | 1 | 16.7% | 8.3% |
| Matrix | 1 | 16.7% | 3.3% |
| Sliding Window | 1 | 16.7% | 5.6% |
| Stack | 1 | 16.7% | 8.3% |
| Two Pointers | 1 | 16.7% | 8.3% |
| Union-Find | 1 | 16.7% | 3.3% |
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