Algorithms interview question · Most asked
Detect a cycle in a linked list—how?
Summary
Floyd: slow/fast pointers; if they meet, a cycle exists.
Longer Answer
Floyd: slow/fast pointers; if they meet, a cycle exists. Reset one to head to find entry.
Key Points
- Floyd: slow/fast pointers; if they meet, a cycle exists
- Reset one to head to find entry
- Cycle detection
- Use the answer to connect the concept back to a realistic production or interview scenario for 'Detect a cycle in a linked list—how?'
Comparison / Tradeoffs
| Aspect | Notes |
|---|---|
| Core idea | Floyd: slow/fast pointers; if they meet, a cycle exists. |
| Practical tradeoff | Cycle detection. |
Explanation
Summary
Cycle detection.
Longer Answer
Cycle detection. Focus on the practical implications across Dsa, Linked List.
Key Points
- Cycle detection
- Focus on the practical implications across Dsa, Linked List
- Relevant areas: Dsa, Linked List
- Use the answer to connect the concept back to a realistic production or interview scenario for 'Detect a cycle in a linked list—how?'
Comparison / Tradeoffs
| Aspect | Notes |
|---|---|
| Core idea | Cycle detection. |
| Practical tradeoff | In an interview, relate 'Detect a cycle in a linked list—how?' to implementation decisions, tradeoffs, and operational impact. |
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