# C++ Recursion: Exercises, Practices, Solutions

## C++ recursion function[16 exercises with solution]

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**1. ** Write a C++ program to find the sum of all elements in an array using recursion.

**2. ** Write a C++ program to calculate the factorial of a given number using recursion.

**3. ** Write a C++ program to implement a recursive function to get the n^{th} Fibonacci number.

**4. ** Write a C++ program to implement a recursive function to calculate the sum of digits of a given number.

**5. ** Write a C++ program to implement a recursive function to find the maximum and minimum elements in an array.

**6. ** Write a C++ program to reverse a string using recursion.

**7. ** Write a C++ program to implement a recursive function to calculate the power of a number.

**8. ** Write a C++ program to implement a recursive function to check if a given string is a palindrome.

**9. ** Write a C++ program to implement a recursive function to reverse a linked list.

**10. ** Write a C++ program to implement a recursive function to find the greatest common divisor (GCD) of two numbers.

**11. ** Write a C++ program to implement a recursive function to count the number of occurrences of a specific element in an array of integers.

**12. ** Write a C++ program to implement a recursive function to generate all permutations of a given string.

**13. ** Write a C++ program to implement a recursive function to calculate the product of two numbers without using the multiplication operator.

**14. ** Write a C++ program to implement a recursive function to calculate the sum of even and odd numbers in a given range.

**15. ** Write a C++ program to implement a recursive function to check if a given binary tree is a binary search tree.

**16. ** Write a C++ program to implement a recursive function to find the sum of all prime numbers in a given range.

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