Can you print numbers from 1 to N without using loops?
This challenge requires alternative control flow mechanisms like recursion. It tests recursion understanding and stack management.
Why Interviewers Ask This
Interviewers ask this to test creativity and deep understanding of recursion. It checks if candidates can replace iterative constructs with recursive calls and manage the base case correctly. It also highlights awareness of stack overflow risks.
How to Answer This Question
Explain using a recursive function that prints the current number and calls itself with the next number. Define a base case to stop recursion when the number exceeds N. Discuss the call stack depth and potential limitations.
Key Points to Cover
- Recursive function definition
- Base case implementation
- Incremental call
- Stack overflow risk
Sample Answer
To print numbers from 1 to N without loops, I can use recursion. I define a function that takes the current number and N. Inside the function, I print the current number and then call the function again with the current…
Common Mistakes to Avoid
- Missing base case
- Infinite recursion
- Incorrect increment logic
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