c++ 链接错误 高分求解

#define MAX 100
#define OVERFLOW -2
#define ERROR 0
#define OK 1

typedef int ElemType;
typedef int Status;

class Queue
{
public:
 void InitQueue();
 Status EnQueue(ElemType e);a
 Status DnQueue(ElemType &e);
 void YHtriangle(int n);

private:
 ElemType *base;
 int front;        //头指针
 int rear;         //尾指针
};

void Queue::InitQueue()
{
  base = new ElemType[MAX];
  if(!base)
 {
  exit (OVERFLOW);
 }
 front = rear = 0;
}

Status Queue::EnQueue(ElemType e)
{

 if((rear + 1) % MAX == front)
 {
  cout<<"队列满"<<endl;
  return ERROR;  //约定队头指针在队尾指针的下位置为满
 }
 base[rear] = e;
 rear = (rear + 1) % MAX;
 
 return OK;
}

Status Queue::DnQueue(ElemType &e)
{
 if(rear == front)
 {
  cout<<"队列为空"<<endl;    
  return ERROR;
 }
 e = base[front];
 front = (front + 1) % MAX;
 
 return OK;
}

//输出杨辉三角
void Queue::YHtriangle(int n)
{
 int i = 0, j = 0, k = 0;
 ElemType pa = 0, pb = 0;
 fstream out;

 out.open("output.txt",ios::out);
 if(!out)
 {
  cout<<"error on open "<<endl;
  exit (0);
 }
 EnQueue(1);
 EnQueue(0);

 for(i = 1; i < n ; i++)
 {
  for(k = i; k < n; k++)
  {
   cout<<" ";
   out<<" ";
  }

  for(j = 0 ;j <= i ; j++)
  {
  
   DnQueue(pb);
   if(pb != 0)
   {
    cout<<pb<<" ";
 out<<pb<<" ";
   }
  
   EnQueue(pa + pb);
   pa=pb;
  }

  EnQueue(0);
  cout<<endl;
  out<<endl;
 }
 for(i = 0; i < n; ++i)
 {
  DnQueue(pb);
  cout<<pb<<" ";
  out<<pb<<" ";
 }
 cout<<endl;
 out<<endl;
 out.close();
}

int mian(void)
{
 Queue Q;
 int n=5;
 fstream in;

 in.open("input.txt", ios::in);
 if(!in)
 {
  cout<<"error on open "<<endl;
  exit (0);
 }
 while(!in.eof())
 {
  in>>n;
  cout<<n;
 }
in.close();

 //规定输入的数的范围为0 < n < 127 的整型数，浮点型做最大整处理
 if(n <= 0 || n >= 127)    
 {
  cout<<"文件中的数不符合要求"<<endl;
 }  

 Q.InitQueue();
 Q.YHtriangle(n); 
 return 0;
}

补充：给出答案，就送100分 ，决不食言，现在不把分放上去，是因为好多次都没有人回答，白白浪费了很多分！

答案：我做了小小改错，请见粗体字注解

程序基本上是好的，有一个问题需要你在逻辑上解决，就是n大到一定程度时，杨辉三角中的数可能太大超出定义整数的数值范围。格式也很难看清。建议把n数值减低，但要测试大于n时程序如何处理。这样更好展示杨辉三角。留给你自己慢慢做。

另外，你用文件放输入整数，究竟是打算放一个还是多个。我发现只有最后一个起作用。
现在我给出的程序时可以运行的，请你自己按要求完善。

#include的文件及名字和你用的开发环境和编译器有关，我用的是比较新的标准的C
++编译器。

#include <iostream>
#include <cstdlib> // changed from stdlib.h
#include <fstream>

#define MAX 100
#define OVERFLOW -2
#define ERROR 0
#define OK 1

using namespace std; // new 

typedef int ElemType;
typedef int Status;

class Queue
{
public:
 void InitQueue();
 Status EnQueue(ElemType e); // remove a
 Status DnQueue(ElemType &e);
 void YHtriangle(int n);

private:
 ElemType *base;
 int front;        // head pointer
 int rear;         // tail pointer
};

void Queue::InitQueue()
{
  base = new ElemType[MAX];
  if(!base)
 {
  exit (OVERFLOW);
 }
 front = rear = 0;
}

Status Queue::EnQueue(ElemType e)
{

 if((rear + 1) % MAX == front)
 {
  cout<<"Queue full"<<endl;
  return ERROR;  //List full when the head pointer position is below tail pointer position
 }
 base[rear] = e;
 rear = (rear + 1) % MAX;

 return OK;
}

Status Queue::DnQueue(ElemType &e)
{
 if(rear == front)
 {
  cout<<"Queue empty"<<endl;
  return ERROR;
 }
 e = base[front];
 front = (front + 1) % MAX;

 return OK;
}

//Output YANG-HUI triangle
void Queue::YHtriangle(int n)
{
 int i = 0, j = 0, k = 0;
 ElemType pa = 0, pb = 0;
 fstream out;

 out.open("output.txt",ios::out);
 if(!out)
 {
  cout<<"error on open "<<endl;
  exit (0);
 }
 EnQueue(1);
 EnQueue(0);

 for(i = 1; i < n ; i++)
 {
  for(k = i; k < n; k++)
  {
   cout<<" ";
   out<<" ";
  }

  for(j = 0 ;j <= i ; j++)
  {

   DnQueue(pb);
   if(pb != 0)
   {
    cout<<pb<<" ";
 out<<pb<<" ";
   }

   EnQueue(pa + pb);
   pa=pb;
  }

  EnQueue(0);
  cout<<endl;
  out<<endl;
 }
 for(i = 0; i < n; ++i)
 {
  DnQueue(pb);
  cout<<pb<<" ";
  out<<pb<<" ";
 }
 cout<<endl;
 out<<endl;
 out.close();
}

int main(void) // changed from mian()
{
 Queue Q;
 int n=5;
 fstream in;

 in.open("input.txt", ios::in);
 if(!in)
 {
  cout<<"error on open "<<endl;
  exit (0);
 }
 while(!in.eof())
 {
  in>>n;
  cout<<n;
 }
in.close();

 //define the input number range 0 < n < 127 integer, float to be treated as the ceiling integer (round up).
 if(n <= 0 || n >= 127)
 {
  cout<<"the number in the file is not qualified"<<endl;
 }

 Q.InitQueue();
 Q.YHtriangle(n);
 return 0;
}
两个地方都是小笔误啦 
帮你改过来的 错的地方有注释
#include <iostream.h>
#include <stdlib.h>
#include <fstream.h>
#define MAX 100
#define OVERFLOW -2
#define ERROR 0
#define OK 1

typedef int ElemType;
typedef int Status;
class Queue
{
public:
 void InitQueue();
 Status EnQueue(ElemType e);//这里多了个a
 Status DnQueue(ElemType &e);
 void YHtriangle(int n);
private:
 ElemType *base;
 int front;        //头指针
 int rear;         //尾指针
};
void Queue::InitQueue()
{
  base = new ElemType[MAX];
  if(!base)
 { 
  exit (OVERFLOW);
 }
 front = rear = 0;
}
Status Queue::EnQueue(ElemType e)
{
 if((rear + 1) % MAX == front)
 {
  cout<<"队列满"<<endl; 
  return ERROR;  //约定队头指针在队尾指针的下位置为满
 }
 base[rear] = e;
 rear = (rear + 1) % MAX; 
 
 return OK;
}
Status Queue::DnQueue(ElemType &e)
{
 if(rear == front)
 {
  cout<<"队列为空"<<endl;     
  return ERROR;
 }
 e = base[front];
 front = (front + 1) % MAX;
  
 return OK;
}
//输出杨辉三角
void Queue::YHtriangle(int n)
{
 int i = 0, j = 0, k = 0;
 ElemType pa = 0, pb = 0; 
 fstream out;
 out.open("output.txt",ios::out);
 if(!out)
 {
  cout<<"error on open "<<endl;
  exit (0);
 }
 EnQueue(1);
 EnQueue(0);
 for(i = 1; i < n ; i++)
 {
  for(k = i; k < n; k++)
  {
   cout<<" ";
   out<<" ";
  }
  for(j = 0 ;j <= i ; j++)
  {
   
   DnQueue(pb);
   if(pb != 0)
   {
    cout<<pb<<" ";
 out<<pb<<" ";
   }
   
   EnQueue(pa + pb);
   pa=pb;
  }
  EnQueue(0);
  cout<<endl;
  out<<endl;
 }
 for(i = 0; i < n; ++i)
 {
  DnQueue(pb);
  cout<<pb<<" "; 
  out<<pb<<" ";
 }
 cout<<endl;
 out<<endl; 
 out.close();
}
int main(void)//这里main写错了
{
 Queue Q;
 int n=5;
 fstream in;
 in.open("input.txt", ios::in);
 if(!in)
 {
  cout<<"error on open "<<endl;
  exit (0);
 }
 while(!in.eof())
 {
  in>>n;
  cout<<n;
 }
in.close();
 //规定输入的数的范围为0 < n < 127 的整型数，浮点型做最大整处理
 if(n <= 0 || n >= 127)     
 {
  cout<<"文件中的数不符合要求"<<endl;
 }   
 Q.InitQueue();
 Q.YHtriangle(n); 
 return 0;
}

上一个：C++文件和类
下一个：C++是什么意思