Sum of n numbers using recursion in c

C code to find the addition of n numbers by recursion:

#include<stdio.h>

int main(){

    int n,sum;

    printf("Enter the value of n: ");

    scanf("%d",&n);

    sum = getSum(n);

    printf("Sum of n numbers: %d",sum);

    return 0;

}

int getSum(n){

    static int sum=0;

    if(n>0){

         sum = sum + n;

         getSum(n-1);

    }

    return sum;

}

Sample output:

Enter the value of n: 10

Sum of n numbers: 55

C code to find the addition of n numbers without using recursion:

#include<stdio.h>

int main(){

    int n,sum;

    printf("Enter the value of n: ");

    scanf("%d",&n);

    sum = getSum(n);

    printf("Sum of n numbers: %d",sum);

    return 0;

}

int getSum(n){

    int sum=0;

    while(n>0){

         sum = sum + n;

         n--;

    }

    return sum;

}