Program to calculate sum of even series using while loop in C.

Code Box
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/*program to calculate sum of the series
2+4+6+8.......+n
even number series
where n is the limit entered by user.
*/

#include<stdio.h>
#include<conio.h>
void main()
{
int i,sum,num;

clrscr();

sum=0;

printf("\nEnter limit : ");
scanf("%d",&num);

printf("\nEven Number Series ");

printf("\nSeries= ");

i=1;
while(i<=num)
{

if(i%2==0)      //modulus operator
{
printf(" + %d ",i);
sum=sum+i;
}
i++;                //increment operator
}
printf("\n\nSum of series= %d",sum);

getch();
}