#include <iostream>
using namespace std;
#define MAXSIZE 50
typedef int ElemType;
typedef struct
{ ElemType  *elem; int length; } SqList;

bool CreateList(SqList &L)
{ int i;
  L.elem=new ElemType[MAXSIZE]; //分配空间
  if (!L.elem)  return false;   
  cout<<"请输入线性表的长度,不能大于"<<MAXSIZE<<':'; cin>>L.length;
  cout<<"请输入表中元素：";
  for(i=0;i<L.length;i++)
     cin>>L.elem[i];   
}

bool ListInsert(SqList &L,int i,ElemType e)
{ if(i<1||i>L.length+1) 
    { cout<<"插入序号错! " ; return  false; }        
  if(L.length==MAXSIZE) 
    { cout<<"表已满! " ;return  false; }   
  for(int j=L.length-1;j>=i-1;j--)
      L.elem[j+1]=L.elem[j];
  L.elem[i-1]=e; 
  L.length++;
  return true;
} 
bool ListDelete(SqList &L,int i)
{
	if((i<1)||(i>L.length))
	{ cout<<"删除序号错! " ; return  false; }
	for(int j=i;j<=L.length-1;j++)
	L.elem[j-1]=L.elem[j];
	--L.length;
	return true;
  }   

void print(SqList L)
{ int i;
  for(i=0;i<L.length;i++)
     if (i==0)  cout<<'('<<L.elem[i];  
     else cout<<','<<L.elem[i];
  cout<<')'<<endl;
}

int main()
{ SqList L; int i,x; ElemType e;
  cout<<"创建[1]"<<endl;
  cout<<"输出[2]"<<endl;
  cout<<"插入[3]"<<endl;
  cout<<"删除[4]"<<endl;
  cout<<"退出[0]"<<endl;
  cout<<"请输入你的选择：";
  cin>>x;
  while(x)
    {  switch(x)
       { case 1:CreateList(L); break;
         case 2:print(L);break;
         case 3:cout<<"请输入插入位置和待插入元素:";   cin>>i>>e;
                ListInsert(L,i,e) ; 
                break;
         case 4:cout<<"请输入删除位置:"; cin>>i;
                ListDelete(L,i);
				break; 
         case 0:break;
         default:cout<<"你的选择有错，请重新选择!" ; 
	   }
	   cout<<"请输入你的选择："; cin>>x;
    }	  
  return 0;  
}