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;
}






Alogrithm:








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