Posted: 25 Sep 2013 12:04 PM PDT

Q. Write a C program to accept the number of elements to be insert from the user and calculate these elements sum.

For example:

if user enter no. of elements : 5
then he/she should enter elements value as:
Enter 1 element/number : 2
Enter 1 element/number : 7
Enter 1 element/number : 1
Enter 1 element/number : 10
Enter 1 element/number : 50
Result will be :
Sum of elements/numbers : 70

Ans.

/*c program for entered number of elements and calculate the sum*/
#include<stdio.h>
int main()
{
int num,arr[20],i,sum=0;
//arr[20] value of changeable as big value

printf("Enter number of element : ");
scanf("%d", &num);
for(i=1; i<=num; i++)
{
printf("Enter %d element : ",i);
scanf("%d", &arr[i]);
}
for(i=1; i<=num; i++)
sum = sum + arr[i];
printf("\nSum of all numbers : %d",sum);
getch();
return 0;
}

/******************************************
The output of above program would be
*******************************************/

Output of Calculating Sum of Number of elements C program

Figure : Screen-shot for Calculating Sum of Number of
elements C program

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