Sum of N natural numbers using recursion
Write a C Program to find Sum of N natural numbers using recursion. Here’s simple Program to find Sum of N natural numbers using recursion in C Programming Language.
Recursion : :
- Recursion is the process of repeating items in a self-similar way. In programming languages, if a program allows you to call a function inside the same function, then it is called a recursive call of the function.
- The C programming language supports recursion, i.e., a function to call itself. But while using recursion, programmers need to be careful to define an exit condition from the function, otherwise it will go into an infinite loop.
- Recursive functions are very useful to solve many mathematical problems, such as calculating the factorial of a number, generating Fibonacci series, etc.
Here is the source code of the C Program to find Sum of N natural numbers using recursion. The C Program is successfully compiled and run on a Windows system. The program output is also shown below.
SOURCE CODE : :
/* C Program to find Sum of N natural numbers using recursion */
int n, s;
printf("Enter the value of N :: ");
printf("\nThe Sum of [ 1 + ... + %d ] numbers is :: %d\n",n,s);
int sum(int x)
return(x + sum(x-1));
OUTPUT : :
/* C Program to find Sum of numbers 1 to N using recursion */
Enter the value of N :: 10
The Sum of [ 1 + ... + 10 ] numbers is :: 55
Process returned 0
Above is the source code for C Program to find Sum of N natural numbers using recursion which is successfully compiled and run on Windows System.The Output of the program is shown above .
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