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C program to calculate sum, product of all One Dimensional Array Elements

This program will read N One Dimensional Array Elements, and calculate the Sum and Product of all elements and print the sum and product.

Calculating sum, product of all array elements

Logic to implement this program - Read array, Run a loop from 0 to N-1 and add each element in SUM variable and multiply each element in PRODUCT variable. Don’t forget to assign 0 in SUM and 1 in PRODUCT variables before running the loop.

Sum and Product of all 1D Array Elements using C program

/*Program to calculate Sum, Product of all elements.*/
 
#include <stdio.h>
  
int main() 
{ 
    int arr[10]; 
    int sum,product,i;
  
    /*Read array elements*/
    printf("\nEnter elements : \n"); 
    for(i=0; i<10; i++) 
    { 
        printf("Enter arr[%d] : ",i); 
        scanf("%d",&arr[i]); 
    } 
     
    /*calculate sum and product*/
    sum=0;
    product=1;
    for(i=0; i<10; i++)
    {
        sum=sum+arr[i];
        product=product*arr[i];
    }
       
    printf("\nSum of array is     : %d"  ,sum); 
    printf("\nProduct of array is : %d\n",product); 
  
    return 0; 
}

Output

Enter elements : 
Enter arr[0] : 11 
Enter arr[1] : 22 
Enter arr[2] : 3 
Enter arr[3] : 4 
Enter arr[4] : 5 
Enter arr[5] : 66 
Enter arr[6] : 7 
Enter arr[7] : 8 
Enter arr[8] : 9 
Enter arr[9] : 10 

Sum of array is     : 145 
Product of array is : 534965504

Using User Define Function

/*Program to calculate Sum, Product of all elements.*/
 
#include <stdio.h>
 
/** funtion :   readArray() 
    input   :   arr ( array of integer ), size 
    to read ONE-D integer array from standard input device (keyboard). 
**/
void readArray(int arr[], int size) 
{ 
    int i =0; 
 
    printf("\nEnter elements : \n"); 
    for(i=0; i<size; i++) 
    { 
        printf("Enter arr[%d] : ",i); 
        scanf("%d",&arr[i]); 
    } 
} 
 
 
/** funtion :   getSum() 
    input   :   arr ( array of integer ), size 
    to get sum of all elements of array. 
**/
int getSum(int arr[], int size) 
{ 
    int i=0,sum=0; 
 
    for(i=0; i<size; i++) 
    { 
        sum += arr[i]; 
    } 
    return sum; 
} 
 
/** funtion :   getProduct() 
    input   :   arr ( array of integer ), size 
    to get product of all elements of array. 
**/
int getProduct(int arr[], int size) 
{ 
    int i=0,product=1; 
 
    for(i=0;i < size; i++) 
    { 
        product *= arr[i]; 
    } 
      
    return product; 
} 
 
int main() 
{ 
    int arr[10]; 
 
    readArray(arr,10); 
      
    printf("\nSum of array is     : %d"  , getSum    (arr,10)   ); 
    printf("\nProduct of array is : %d\n", getProduct(arr,10)   ); 
 
    return 0; 
}

Output

Enter elements : 
Enter arr[0] : 11 
Enter arr[1] : 22 
Enter arr[2] : 3 
Enter arr[3] : 4 
Enter arr[4] : 5 
Enter arr[5] : 66 
Enter arr[6] : 7 
Enter arr[7] : 8 
Enter arr[8] : 9 
Enter arr[9] : 10 

Sum of array is     : 145 
Product of array is : 534965504

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