۲۰ تا سوال زیر رو سعی کنید بدون هوش مصنوعی و کمک و فقط با فکر کردن ، به روش recursive حل کنید

🟢 Easy

1. Write a recursive function to calculate the sum of numbers from 1 to n.

2. Write a recursive function to compute the factorial of n.

3. Write a recursive function to print each element of an array.

4. Write a recursive function to count down from n to 1.

5. Write a recursive function to reverse a string.

6. Write a recursive function that returns the length of a string (without using .length).

7. Write a recursive function to check if a number is even.

8. Write a recursive function that prints numbers from 1 up to n.

9. Write a recursive function to count the number of vowels in a string.

10 .Write a recursive function to calculate the power base^exponent.

🟡 Medium

11. Write a recursive function to compute the nth Fibonacci number.

12. Write a recursive function to check if a string is a palindrome.

13. Write a recursive function to sum all elements in a nested array (deep sum).

14. Write a recursive function to flatten a nested array into a single array.

15. Write a recursive function to find the maximum number in an array.

16. Write a recursive function that capitalizes the first letter of each word in an array of strings.

17. Write a recursive function to multiply all numbers in an array.

18. Write a recursive function that removes all occurrences of a given character from a string.

19. Write a recursive function to find the GCD (greatest common divisor) of two numbers.

20. Write a recursive function to merge two sorted arrays into one sorted array (without using loops).

@alithecodeguy #recursive #interview