C++ program to print sum of first n numbers

#include<constream.h>
void main()
{
 int sum();
 int x;
 clrscr();
 x=sum();
 cout<<"sum="<<x;
 getch();
}
int sum()
{
 int s=0,n,i;
 cout<<"\nenter n:";
 cin>>n;
 for(i=0;i<=n;i++)
 s+=i;
 return s;
}

Categories: C++ Programming, CPP