Program to calculate sum of n numbers using while loop in C.

Code Box
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/*program to calculate sum of the series 
1+2+3+4+.......+n
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("\nSeries= ");

i=1; //initialization

while(i<=num)
{
printf(" + %d ",i);
sum=sum+i;
i++;             //increment 
}
printf("\n\nSum of series= %d",sum);

getch();
}