This is the source code to calculate the sum of first 1000 integers
#include <iostream.h>
main()
{
int sum, number;
sum = 0;
number = 1;
while(number <= 1000)
{
sum = sum + number;
number = number + 1;
}
cout << "The sum of first 1000 integers starting from 1 is " << sum;
getch();
}
End
