Calculate Sum Of Natural Numbers

Calculate Sum Of Natural Numbers

/* This program is solved using while loop. */
#include 
int main()
{
 int n, count, sum=0;
 printf("Enter an integer: ");
 scanf("%d",&n);
 count=1;
 while(count<=n) /* while loop terminates if count>n */
 {
   sum+=count; /* sum=sum+count */
   ++count;
 }
 printf("Sum = %d",sum);
 return 0;
}
Output 
Enter an integer: 100 
Sum = 5050