Persistent Systems Coding Interview Questions
We track 11 coding questions asked at Persistent Systems, tagged with the algorithms and concepts they test. The most common: Array, String, Hash Table, Sorting, Two Pointers.
Browse all 11 Persistent Systems questions →Concept mix
Each question's weight is split evenly across its concepts, so the shares sum to 100%.
- Array18.9%
- String15.9%
- Hash Table9.8%
- Two Pointers9.1%
- Bit Manipulation9.1%
- Math9.1%
- Sorting8.3%
- Dynamic Programming6.1%
- Stack4.5%
- Divide and Conquer3.0%
- Other (2)6.0%
How many questions involve each concept
Share of all 11 tracked Persistent Systems questions that touch each concept. Questions usually involve several, so these overlap.
- Array54.5%
- String45.5%
- Hash Table27.3%
- Sorting27.3%
- Two Pointers27.3%
- Dynamic Programming18.2%
- Bit Manipulation9.1%
- Divide and Conquer9.1%
- Math9.1%
- Sliding Window9.1%
- Stack9.1%
- Trie9.1%
Where Persistent Systems differs from the average company
Concept weight at Persistent Systems relative to the average across all companies we track. Green means Persistent Systems leans on it harder than most.
- Two Pointers2.5×
- Sorting2.1×
- String1.7×
- Hash Table1.5×
Persistent Systems specialties
Concepts that show up at Persistent Systems but are rarely asked elsewhere. They are easy to get blindsided by.
Difficulty mix
Level split of the 11 tracked Persistent Systems questions.
- Junior55% (6)
- Mid/Senior45% (5)
Every concept in Persistent Systems interviews
| Concept | Questions | % of questions | Share of mix |
|---|---|---|---|
| Array | 6 | 54.5% | 18.9% |
| String | 5 | 45.5% | 15.9% |
| Hash Table | 3 | 27.3% | 9.8% |
| Sorting | 3 | 27.3% | 8.3% |
| Two Pointers | 3 | 27.3% | 9.1% |
| Dynamic Programming | 2 | 18.2% | 6.1% |
| Bit Manipulation | 1 | 9.1% | 9.1% |
| Divide and Conquer | 1 | 9.1% | 3.0% |
| Math | 1 | 9.1% | 9.1% |
| Sliding Window | 1 | 9.1% | 3.0% |
| Stack | 1 | 9.1% | 4.5% |
| Trie | 1 | 9.1% | 3.0% |
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