C语言相关程序

#include<iostream.h>

class sample
{
	int n;
public:
	sample(int i)
	{
		n=i;
	}
	int getn() const
	{
		return n;
	}
};
int add(const sample &s1,const sample &s2)
{
	int sum=s1.getn()+s2.getn();
	return sum;
}
void main()
{
	sample s1(100),s2(100);
	cout<<"sum="<<add(s1,s2)<<endl;
}