Yelp Coding Interview Questions
We track 26 coding questions asked at Yelp, tagged with the algorithms and concepts they test. The most common: String, Array, Hash Table, Sorting, Math.
Browse all 26 Yelp questions →Concept mix
Each question's weight is split evenly across its concepts, so the shares sum to 100%.
- String22.6%
- Array13.6%
- Hash Table12.8%
- Sorting7.5%
- Two Pointers5.1%
- Math4.4%
- Breadth-First Search3.2%
- Recursion3.2%
- Sliding Window3.2%
- Backtracking2.2%
- Other (21)22.5%
How many questions involve each concept
Share of all 26 tracked Yelp questions that touch each concept. Questions usually involve several, so these overlap.
- String65.4%
- Array46.2%
- Hash Table46.2%
- Sorting26.9%
- Math15.4%
- Breadth-First Search11.5%
- Heap (Priority Queue)11.5%
- Two Pointers11.5%
- Backtracking7.7%
- Bucket Sort7.7%
- Counting7.7%
- Design7.7%
Where Yelp differs from the average company
Concept weight at Yelp relative to the average across all companies we track. Green means Yelp leans on it harder than most.
- Randomized15.0×
- Bucket Sort10.0×
- Trie3.6×
- Recursion2.9×
- Math0.79×
- Array0.70×
Yelp specialties
Concepts that show up at Yelp but are rarely asked elsewhere. They are easy to get blindsided by.
Difficulty mix
Level split of the 26 tracked Yelp questions.
- Junior27% (7)
- Mid/Senior54% (14)
- Staff19% (5)
Every concept in Yelp interviews
| Concept | Questions | % of questions | Share of mix |
|---|---|---|---|
| String | 17 | 65.4% | 22.6% |
| Array | 12 | 46.2% | 13.6% |
| Hash Table | 12 | 46.2% | 12.8% |
| Sorting | 7 | 26.9% | 7.5% |
| Math | 4 | 15.4% | 4.4% |
| Breadth-First Search | 3 | 11.5% | 3.2% |
| Heap (Priority Queue) | 3 | 11.5% | 1.4% |
| Two Pointers | 3 | 11.5% | 5.1% |
| Backtracking | 2 | 7.7% | 2.2% |
| Bucket Sort | 2 | 7.7% | 1.0% |
| Counting | 2 | 7.7% | 1.0% |
| Design | 2 | 7.7% | 1.5% |
| Divide and Conquer | 2 | 7.7% | 1.0% |
| Randomized | 2 | 7.7% | 1.5% |
| Recursion | 2 | 7.7% | 3.2% |
| Sliding Window | 2 | 7.7% | 3.2% |
| Trie | 2 | 7.7% | 1.8% |
| Binary Indexed Tree | 1 | 3.8% | 0.5% |
| Bit Manipulation | 1 | 3.8% | 1.3% |
| Depth-First Search | 1 | 3.8% | 1.0% |
| Game Theory | 1 | 3.8% | 1.0% |
| Graph Theory | 1 | 3.8% | 1.0% |
| Greedy | 1 | 3.8% | 1.0% |
| Sweep Line | 1 | 3.8% | 0.5% |
| Linked List | 1 | 3.8% | 1.9% |
| Ordered Set | 1 | 3.8% | 0.5% |
| Quickselect | 1 | 3.8% | 0.5% |
| Segment Tree | 1 | 3.8% | 0.5% |
| Stack | 1 | 3.8% | 1.3% |
| String Matching | 1 | 3.8% | 1.3% |
| Topological Sort | 1 | 3.8% | 1.0% |
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