#include <iostream.h>

#include <conio.h>

#include <stdlib.h>

#include <stdio.h>

struct phantu

{

int x;

phantu*next;

};

typedef phantu*tro;

void nhap(tro&dau)

{

tro p;

char ch;

dau=NULL;

do

{

p=new(phantu);

cout<<"

nhap x:";cin>>p->x;

p->next=dau;

dau=p;

cout<<"

nhan <esc> de ket thuc!";

ch=getch();

}

while (ch!=27);

}

void lietke(tro dau)

{

tro p;

cout<<"

phantu:

";

p=dau;

while(p!=NULL)

{

cout<<" "<<p->x;

p=p->next;

}

getch();

}

int max(tro dau)

{

int ln;

if( dau==NULL)

{

cout<<"danh sach rong"  ;

return 0;

}

else

{

tro find=dau;

ln=find->x;

while(find!=NULL)

{

if(ln< find->x)

ln=find->x;

find=find->next;

}

return ln;

}

}

float Dem(tro dau)

{

tro p=dau;

float d=0;

while(p!=NULL)

{

d++;

p=p->next;

}

return d;

}

float Tong(tro dau)

{

tro p=dau;

float s=0;

while(p!=NULL)

{

s=s+p->x;

p=p->next;

}

return s;

}

float TB(tro dau)

{

float tb=0;

tb=Tong(dau)/Dem(dau);

return tb;

}

void main()

{

clrscr();

 tro Dau;

nhap(Dau);

lietke (Dau);

int m;

m=max(Dau) ;

cout<<"

max la: "<<m;

cout<<"

dem = "<<Dem(Dau);

cout<<"

tong = "<<Tong(Dau);

cout <<"

tb = "<<TB(Dau);

getch();

}