luc050.c

Problem Statement

luc050.c

Write a recursive function to obtain the sum of first 25 natural numbers.

Source Code

#include <stdio.h>
#include <math.h>
#include <stdlib.h>

int get_sum(int);

int main()
{
    int n = 25, sum;

    sum = get_sum(n);
    printf("Sum of first %d natural numbers is: %d\n", n, sum);

    return 0;
}

int get_sum(int n)
{
    if (n == 0)
        return 0;
    else
        return n + get_sum(n - 1);
}

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● Author - Amit Dutta · Updated - 08 Feb 2026