Dell Coding Interview Questions
We track 11 coding questions asked at Dell, tagged with the algorithms and concepts they test. The most common: String, Array, Hash Table, Database, Two Pointers.
Browse all 11 Dell questions →Concept mix
Each question's weight is split evenly across its concepts, so the shares sum to 100%.
- String22.0%
- Database18.2%
- Array11.4%
- Hash Table9.8%
- Two Pointers7.6%
- Greedy4.5%
- Prefix Sum4.5%
- Stack4.5%
- Sliding Window3.0%
- String Matching3.0%
- Other (5)11.5%
How many questions involve each concept
Share of all 11 tracked Dell questions that touch each concept. Questions usually involve several, so these overlap.
- String54.5%
- Array27.3%
- Hash Table27.3%
- Database18.2%
- Two Pointers18.2%
- Divide and Conquer9.1%
- Greedy9.1%
- Heap (Priority Queue)9.1%
- Linked List9.1%
- Merge Sort9.1%
- Prefix Sum9.1%
- Sliding Window9.1%
Where Dell differs from the average company
Concept weight at Dell relative to the average across all companies we track. Green means Dell leans on it harder than most.
- Database6.7×
- String2.3×
- Two Pointers2.1×
- Hash Table1.5×
- Array0.59×
Dell specialties
Concepts that show up at Dell but are rarely asked elsewhere. They are easy to get blindsided by.
Difficulty mix
Level split of the 11 tracked Dell questions.
- Junior55% (6)
- Mid/Senior27% (3)
- Staff18% (2)
Every concept in Dell interviews
| Concept | Questions | % of questions | Share of mix |
|---|---|---|---|
| String | 6 | 54.5% | 22.0% |
| Array | 3 | 27.3% | 11.4% |
| Hash Table | 3 | 27.3% | 9.8% |
| Database | 2 | 18.2% | 18.2% |
| Two Pointers | 2 | 18.2% | 7.6% |
| Divide and Conquer | 1 | 9.1% | 2.3% |
| Greedy | 1 | 9.1% | 4.5% |
| Heap (Priority Queue) | 1 | 9.1% | 2.3% |
| Linked List | 1 | 9.1% | 2.3% |
| Merge Sort | 1 | 9.1% | 2.3% |
| Prefix Sum | 1 | 9.1% | 4.5% |
| Sliding Window | 1 | 9.1% | 3.0% |
| Sorting | 1 | 9.1% | 2.3% |
| Stack | 1 | 9.1% | 4.5% |
| String Matching | 1 | 9.1% | 3.0% |
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