Bytedance Coding Interview Questions
We track 65 coding questions asked at Bytedance, tagged with the algorithms and concepts they test. The most common: Array, String, Hash Table, Dynamic Programming, Breadth-First Search.
Browse all 65 Bytedance questions →Concept mix
Each question's weight is split evenly across its concepts, so the shares sum to 100%.
- Array17.9%
- String9.2%
- Dynamic Programming7.5%
- Hash Table7.3%
- Linked List5.3%
- Breadth-First Search4.1%
- Stack3.7%
- Binary Search3.6%
- Math3.4%
- Backtracking2.9%
- Other (30)35.1%
How many questions involve each concept
Share of all 65 tracked Bytedance questions that touch each concept. Questions usually involve several, so these overlap.
- Array52.3%
- String27.7%
- Hash Table24.6%
- Dynamic Programming20.0%
- Breadth-First Search15.4%
- Linked List12.3%
- Math12.3%
- Stack12.3%
- Depth-First Search10.8%
- Sorting10.8%
- Binary Search9.2%
- Divide and Conquer9.2%
Where Bytedance differs from the average company
Concept weight at Bytedance relative to the average across all companies we track. Green means Bytedance leans on it harder than most.
- Merge Sort7.0×
- Quickselect5.0×
- Divide and Conquer2.6×
- Linked List2.5×
- Math0.61×
- Greedy0.57×
- Prefix Sum0.50×
- Two Pointers0.47×
Bytedance specialties
Concepts that show up at Bytedance but are rarely asked elsewhere. They are easy to get blindsided by.
Difficulty mix
Level split of the 65 tracked Bytedance questions.
- Junior8% (5)
- Mid/Senior78% (51)
- Staff14% (9)
Every concept in Bytedance interviews
| Concept | Questions | % of questions | Share of mix |
|---|---|---|---|
| Array | 34 | 52.3% | 17.9% |
| String | 18 | 27.7% | 9.2% |
| Hash Table | 16 | 24.6% | 7.3% |
| Dynamic Programming | 13 | 20.0% | 7.5% |
| Breadth-First Search | 10 | 15.4% | 4.1% |
| Linked List | 8 | 12.3% | 5.3% |
| Math | 8 | 12.3% | 3.4% |
| Stack | 8 | 12.3% | 3.7% |
| Depth-First Search | 7 | 10.8% | 2.6% |
| Sorting | 7 | 10.8% | 2.5% |
| Binary Search | 6 | 9.2% | 3.6% |
| Divide and Conquer | 6 | 9.2% | 2.1% |
| Matrix | 6 | 9.2% | 2.5% |
| Recursion | 5 | 7.7% | 2.7% |
| Backtracking | 4 | 6.2% | 2.9% |
| Binary Tree | 4 | 6.2% | 2.0% |
| Design | 4 | 6.2% | 1.4% |
| Greedy | 4 | 6.2% | 1.7% |
| Heap (Priority Queue) | 4 | 6.2% | 1.3% |
| Monotonic Stack | 4 | 6.2% | 1.5% |
| Tree | 4 | 6.2% | 2.0% |
| Two Pointers | 4 | 6.2% | 1.7% |
| Simulation | 3 | 4.6% | 1.4% |
| Sliding Window | 3 | 4.6% | 1.8% |
| Union-Find | 3 | 4.6% | 1.1% |
| Graph Theory | 2 | 3.1% | 0.8% |
| Merge Sort | 2 | 3.1% | 0.7% |
| Prefix Sum | 2 | 3.1% | 0.8% |
| Quickselect | 2 | 3.1% | 0.5% |
| Binary Search Tree | 1 | 1.5% | 0.5% |
| Bit Manipulation | 1 | 1.5% | 0.5% |
| Bucket Sort | 1 | 1.5% | 0.2% |
| Counting | 1 | 1.5% | 0.2% |
| Data Stream | 1 | 1.5% | 0.3% |
| Doubly-Linked List | 1 | 1.5% | 0.4% |
| Geometry | 1 | 1.5% | 0.3% |
| Memoization | 1 | 1.5% | 0.5% |
| Randomized | 1 | 1.5% | 0.3% |
| Topological Sort | 1 | 1.5% | 0.4% |
| Trie | 1 | 1.5% | 0.4% |
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