More Problems

• Write a program to find the sum of the digits of a number.
• Write a program to check if a string contains only digits.
• Write a program to find the factorial of a number using recursion.
• Write a program to swap two numbers using pointers.
• Write a program to implement a simple number guessing game.
• Write a program to calculate the power of a number using loops.
• Write a program to check if a triangle is valid based on the lengths of its sides.
• Write a program to find the nth Fibonacci number using recursion.