7. (B) Write a program to find the sum of natural number using recursive function

7. (B) Write a program to find the sum of a natural number using recursive function

#include <stdio.h>
	int addNumbers(int n);
	int main()
	{
	int n;
	printf("Enter a positive integer: ");
	scanf("%d", &n);
	printf("Sum = %d",addNumbers(n));
	return 0;
	}
	int addNumbers(int n)
	{
	if(n!=0)
	return n+addNumbers(n-1);
	else
	return n;
	}