Let us c Q.Write a recursive function to obtain the running sum of first 25 natural numbers

CH-5J(e).c

#include <stdio.h>

int sum(int);
int main()
{
    int num;
    printf("Number of term ");
    scanf("%d", &num);
    printf("sum of runnig series =%d", sum(num));
}

int sum(int num)
{
    if (num == 1)
    {
        return 1;
    }
    else
        return num + sum(num - 1);
}