C Program to Find the Sum of Natural Numbers using Recursion

C Program to Find the Sum of Natural Numbers using Recursion

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Code Explanation :

The numbers 1, 2, 3... are referred to as the natural numbers. The above program takes from the user a positive integer and calculates the sum up to the number given.

When user gives input then addNumbers() function (user-defined) is called from main() function and that variable is passed to addNumbers() function from main function as a argument.

The number given by user is added to the result of addNumbers(n-1).

Then after addNumbers() function is called itself known as recursive function. n-1 is passed which is added to the result of addNumbers(n-2). This process continues until variable n is equal to 0.

When n is equal to 0, recursive call will be stop. It eventually returns the number of integers to the main() function.

Our example mainly covers following topics in any programing

  • Basic Programs
  • Number Programs
  • Array Programs
  • Matrix Programs
  • Pattern Programs
  • String Programs
  • Tree Programs
  • Singly Linked List Programs
  • Circular Linked List Programs
  • Doubly Linked List Programs

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