Freecharge Coding Interview Questions
We track 3 coding questions asked at Freecharge, tagged with the algorithms and concepts they test. The most common: Hash Table, Array, Design, Doubly-Linked List, Greedy.
Browse all 3 Freecharge questions →Concept mix
Each question's weight is split evenly across its concepts, so the shares sum to 100%.
- Hash Table19.4%
- Array16.7%
- Greedy16.7%
- Sliding Window11.1%
- String11.1%
- Design8.3%
- Doubly-Linked List8.3%
- Linked List8.3%
How many questions involve each concept
Share of all 3 tracked Freecharge questions that touch each concept. Questions usually involve several, so these overlap.
- Hash Table66.7%
- Array33.3%
- Design33.3%
- Doubly-Linked List33.3%
- Greedy33.3%
- Linked List33.3%
- Sliding Window33.3%
- String33.3%
Where Freecharge differs from the average company
Concept weight at Freecharge relative to the average across all companies we track. Green means Freecharge leans on it harder than most.
- Hash Table2.9×
Freecharge specialties
Concepts that show up at Freecharge but are rarely asked elsewhere. They are easy to get blindsided by.
Difficulty mix
Level split of the 3 tracked Freecharge questions.
- Mid/Senior100% (3)
Every concept in Freecharge interviews
| Concept | Questions | % of questions | Share of mix |
|---|---|---|---|
| Hash Table | 2 | 66.7% | 19.4% |
| Array | 1 | 33.3% | 16.7% |
| Design | 1 | 33.3% | 8.3% |
| Doubly-Linked List | 1 | 33.3% | 8.3% |
| Greedy | 1 | 33.3% | 16.7% |
| Linked List | 1 | 33.3% | 8.3% |
| Sliding Window | 1 | 33.3% | 11.1% |
| String | 1 | 33.3% | 11.1% |
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