这个程序出现这样的窗口是什么意思？

[qinken547]

#ifndef POLYNOMINAL_H_
#define POLYNOMINAL_H_

#include <iostream>
class Term{
public:
	Term(int c,int e);
	Term(int c,int e,Term* nxt);
	Term* InsertAfter(int c,int e);
private:
	int coef;
	int exp;
	Term* link;
	friend std::ostream& operator<<(std::ostream& ,const Term&);
	friend class Polynominal;
};



class Polynominal
{
public:
	Polynominal();
	~Polynominal();
	void AddTerms(std::istream &in);
	void Output(std::ostream &out)const;
	void PolyAdd(Polynominal& r);
private:
	Term* theList;
	friend std::ostream& operator <<(std::ostream &,const Polynominal &);
	friend std::iostream &operator >>(std::iostream &,Polynominal &);
	friend Polynominal& operator +(Polynominal &,Polynominal &);
};



Term::Term(int c,int e):coef(c),exp(e)
{
	link=0;
}

Term::Term(int c,int e,Term *nxt):coef(c),exp(e)
{
	link=nxt;
}

Term* Term::InsertAfter(int c,int e)
{
	link=new Term(c,e,link);
	return link;
}

std::ostream& operator <<(std::ostream &out,const Term &val)
{
	if (val.coef==0)return out;
	out<<val.coef;
	switch (val.exp){
	case 0:break;
	case 1:out<<"X";break;
	default:out<<"X^"<<val.exp;break;
	}
	return out;
}



Polynominal::Polynominal()
{
	theList=new Term(0,-1);
	theList->link=theList;
}

Polynominal::~Polynominal()
{
	Term *p=theList->link;
	while (p!=theList){
		theList->link=p->link;
		delete p;
		p=theList->link;
	}
	delete theList;
}

void Polynominal::AddTerms(std::istream &in)
{
	Term *q=theList;
	int c,e;
	for (;;){
		std::cout<<"Input a term(coef,exp):\n"<<std::endl;
		std::cin>>c>>e;
		if (e<0)break;
		q=q->InsertAfter(c,e);
	}
}

void Polynominal::Output(std::ostream &out)const
{
	int first=1;Term *p=theList->link;
	std::cout<<"The polynomina is:\n"<<std::endl;
	for (;p!=theList;p=p->link){
		if (!first&&(p->coef>0))out<<"+";
		first=0;
		out<<*p;
	}
	std::cout<<"\n"<<std::endl;
}

void Polynominal::PolyAdd(Polynominal &r)
{
	Term *q,*ql=theList,*p;
	p=r.theList->link;
	q=ql->link;
	while (p->exp>=0){
		while (p->exp<q->exp){
			ql=q;q=q->link;
		}
		if (p->exp==q->exp){
			q->coef=q->coef+p->coef;
			if (q->coef==0)
			{
				ql->link=q->link;delete (q);
				q=ql->link;
			}
			else
			{
				ql=q;q=q->link;
			}
		}
		else
			ql=ql->InsertAfter(p->coef,p->exp);
		p=p->link;
	}
}

std::ostream &operator <<(std::ostream &out,const Polynominal& x)
{
	x.Output(out);
	return out;
}

std::istream &operator >>(std::istream &in,Polynominal &x)
{
	x.AddTerms(in);return in;
}

Polynominal &operator +(Polynominal &a,Polynominal &b)
{
	a.PolyAdd(b);return a;
}


#endif 


#include "Polynominal.h"


int main()
{
	Polynominal p,q;
	std::cin>>p;std::cout<<p;
	std::cin>>q;std::cout<<q;
	q=q+p;std::cout<<q;

	return 0;
}

这是人民邮电教材《数据结构》使用C++语言描述这本书中的一个程序....
我运行的时候出出了这个：
'"D:\c++\Polynominal\Debug\Polynominal.exe"' is not recognized as an internal or
external command,
operable program or batch file.
Press any key to continue . . .

[liushun8910]

全放在一个类，不要分成几个头文件