juniorRecursion
What is Recursion?
Updated Apr 28, 2026
Short answer
A programming technique where a function calls itself directly or indirectly to solve a problem.
Deep explanation
Recursion allows for elegant solutions to hierarchical problems. A programming technique where a function calls itself directly or indirectly to solve a problem. However, it requires careful handling of the stack to prevent memory exhaustion.
Real-world example
Traversing a family tree.
Common mistakes
- Forgetting the base case, leading to infinite recursion.
Follow-up questions
- What is the space complexity?