// abbc.cpp : Defines the entry point for the console application.

//DSLK don

#include "stdafx.h"

struct nodelist

{

    int info;

    nodelist *pNext;

};

struct list

{

    nodelist *pHead;

    nodelist *pTail;

};

/*void ReadFile(list &l)

{

    int a[100];

    FILE *f = fopen("input.txt","rt");

    while(!feof(f))

    {

        fscanf(f,"%d",&temp);

        nodelist *p= GetNode(temp);

        AddHead(l,p);

    }

        fclose(f);

}

*/

void Init(list &l)

{

    l.pHead = l.pTail= NULL;

}

nodelist *GetNode(int x)

{

    nodelist *p=new nodelist;

    if(p==NULL)

        return NULL;

    p->info=x;

    p->pNext=NULL;

    return p;

}

void AddHead(list &l, nodelist*p)

{

    if(l.pHead==NULL)

        l.pHead=l.pTail=p;

    else

    {

        p->pNext=l.pHead;

        l.pHead=p;

    }

}

void AddTail(list&l, nodelist *p)

{

    if(l.pHead==NULL)

        l.pHead=l.pTail=p;

    else

    {

        l.pTail->pNext=p;

        l.pTail=p;

    }

}

nodelist *GetHead(list &l)

{

    if(l.pHead==l.pTail==NULL)

        return NULL;

    else if(l.pHead==l.pTail)

    {

        nodelist *p =l.pHead;

        l.pHead=l.pTail=NULL;

        return p;

    }

    else

    {

        nodelist *p=l.pHead;

        l.pHead = l.pHead->pNext;

        p -> pNext = NULL;

        return p;

    }

}

void ReadFile(list &l)

{

    //int a[100];

    FILE *f = fopen("input.txt","rt");

    while(!feof(f))

    {

        fscanf(f,"%d",&temp);

        nodelist *p= GetNode(temp);

        //AddHead(l,p);

        AddTail(l,p);

    }

        fclose(f);

}

void PrintList(list l)

{

    for(nodelist *p =l.pHead;p;p=p->pNext)

        printf("%d",p->info);

}

int _tmain(int argc, _TCHAR* argv[])

{

    //ReadFile();

    list l;

    Init(l);

    ReadFile(l);

    /*printf("nhap gt n: ");

    scanf("%d",&temp);

    nodelist *p= GetNode(temp);

    AddHead(l,p);

    //AddTail(l,p);*/

    PrintList(l);

    return 0;

}