void list::doc_tep(char *filename)
{
ts x;
fstream f(filename,ios::in|ios::trunc); while(f>>x,!f.eof())
add(x);
f.close();
}
void list::ghi_tep(char *filename)
{
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node *p; ts x;
fstream f(filename,ios::out|ios::in|ios::trunc); p=home;
while(p!=NULL)
{
f<<p->info; p=p->link;
}
f.close();
}
void list::display()
{
node *p; p=home; while(p!=NULL)
{
(p->info).hienthi(); p=p->link;
}
}
unsigned int list::count()
{
node *p;
unsigned int dem=0; p=home; while(p!=NULL)
{
dem++;
p=p->link;
}
return dem;
}
void ts::add(ts x)
{
node *p, *end; p=new node;
p->info=x;
p->link=NULL; if(home==NULL) home=p; else
{
end=home;
while(end->link!=NULL) end=end->link; end->link=p;
}
}
void ts::remove(node *p)
{
node *q; if(home==NULL) return; else
{
if(p==home)
if(home->link==NULL) home=NULL; else
{
home=home->link; p->link=NULL;
}
else
{
q=home;
while(q->link!=p) q=q->link; q->link=p->link;
}
delete p;
}
}
node *list::find_add(char *x)
{
node *p; p=home;
while((p!=NULL)&&(strcmp((p->info).sbd.getsbd(),x)!=0) p=p->link;
return p;
}
void list::find_sbd(char *x)
{
node *p; p=home;
while((p!=NULL)&&(strcmp((p->info).getsbd(),x)!=0)) p=p->link;
if(p!=NULL) (p->info).hienthi();
else
cout<<"Khong tim thay thi sinh co so bao danh tren";
}
void list::find_ten(char *x)
{
node *p; p=home;
while((p!=NULL)&&(strcmp((p->info).getten(),x)!=0)) p=p->link;
if(p!=NULL) (p->info).hienthi(); else
cout<<"Khong tim thay thi sinh co so bao danh tren";
}
void list::find_max()
{
node *p;
unsigned int diemmax=0; p=home;
while(p!=NULL)
{
if((p->info).getdiem()>diemmax) diemmax=(p->info).getdiem();
p=p->link;
}
p=home; while(p!=NULL)
{
if((p->info).getdiem()==diemmax) (p-
>info).hienthi(); p=p->link;
}
}
void find_min()
{
node *p;
unsigned int diemmin=65535; p=home;
while(p!=NULL)
{
if((p->info).getdiem()<diemmin) diemmin=(p->info).getdiem(); p=p->link;
}
p=home; while(p!=NULL)
{
if((p->info).getdiem()==diemmin)
(p->info).hienthi(); p=p->link;
}
}
list list::xettuyen_diem(unsigned int diemchuan)
{
node *p; list kq; p=home;
cout<<"Danh sach thi sinh trung tuyenn"; while(p!=NULL)
{
if((p->info).getdiem()>=diemchuan) kq.add(p->info); p=p->link;
}
return kq;
}
list list::xettuyen_soluong(unsigned int soluong)
{
node *p; list kq;
unsigned int dem; sort_desc(); p=home;
dem=0;
cout<<"Danh sach thi sinh trung tuyenn"; while((p!=NULL)&&(dem<soluong))
{
dem++;
kq.add(p->info); p=p->link;
}
return kq;
}
void list::sort_asc()
{
node *p,*q; ts tg; p=home;
while(p->link!=NULL)
{
q=p->link; while(q!=NULL)
{
if((p->info).getdiem()>(q->info).getdiem())
{
tg= p->info; p->info=q->info; q->info=tg;
}
q=q->link;
}
p=p->link;
}
}
void list::sort_desc()
{
node *p,*q; ts tg; p=home;
while(p->link!=NULL)
{
q=p->link; while(q!=NULL)
{
if((p->info).getdiem()<(q->info).getdiem())
{
tg= p->info; p->info=q->info; q->info=tg;
}
q=q->link;
}
}
p=p->link;
}
void list::remove(char *x)
{
node *p,*q; p=home; while(p!=NULL)
{
q=p;
while((q!=NULL)&&(strcmp((q->info).getsbd(),x)!=0)) q=q->link;
if(q!=NULL)
{
p=q->link; remove(q);
}
else p=NULL;
}
}
void main()
{
list l,tt; ts x;
unsigned int diemchuan,soluong; char bd[5],ht[30];
char lc; int chon;
do
{
clrscr();
cout<<"n 1. Lap danh sach thi sinh"; cout<<"n 2. Hien thi danh sach thi sinh"; cout<<"n 3. Tim kiem thong tin"; cout<<"n 4. Bo sung vao danh sach"; cout<<"n 5. Xoa khoi danh sach"; cout<<"n 6. Sap xep danh sach"; cout<<"n 7. Xet tuyen";
cout<<"n 8. Ket thuc chuong trinh"; cout<<"nChon chuc nang:";cin>>chon; switch (chon)
{
case 1:
char filename[20]; char tl;
do
{
clrscr();
cout<<"na. Nhap tu ban phim"; cout<<"nb. Doc tu tep"; cout<<"nc. Quay lai(nhan r):"; cout<<"n Ban chon:";
cin>>lc; switch(lc)
{
case 'a':
l.create();
cin.ignore();
cout<<"Da xong, co gi vao tep khong?"; cin>>tl;
if((tl=='c')||(tl=='C'))
{
cout<<"Ten tep:"; cin.ignore(); cin.getline(filename,20); l.ghi_tep(filename);
}
break; case 'b':
cout<<"Ten tep:"; cin.ignore();
cin.getline(filename,20); l.doc_tep(filename); break;
}
}
while(lc!='r'); break;
case 2:
cout<<"nDanh sach thi sinh:n"; l.display();
getch(); break;
case 3: do
{
clrscr();
cout<<"na. Tim theo so bao danh"; cout<<"nb. Tim theo ten";
cout<<"nc. Thi sinh co diem cao nhat"; cout<<"nd. Thi sinh co diem thap nhat"; cout<<"ne. Quay lai(nhan r):"; cout<<"n Ban chon:";
cin>>lc; switch(lc)
{
case 'a': cin.ignore(1);
cout<<"So bao danh:";cin.getline(bd,5); l.find_sbd(bd);
getch();break; case 'b': cin.ignore(1);
cout<<"Ho va ten:";cin.getline(ht,30); l.find_ten(ht);
getch();break; case 'c':
cout<<"Thi sinh co diem cao nhatn"; l.find_max();
getch();break; case 'd':
cout<<"Thi sinh co diem cao nhatn"; l.find_min();
getch();break;
}
}
while(lc!='r'); break;
case 4:
cout<<"Nhap thong tin thi sinh can bo sungn"; x.nhap();
l.add(x);
cin.ignore();
cout<<"Da xong, co gi vao tep khong?"; cin>>tl;
if((tl=='c')||(tl=='C'))
{
}
break; case 5:
cout<<"Ten tep:"; cin.ignore(); cin.getline(filename,20); fstream f(filename,ios::app); f<<x;
f.close();
bon";
cout<<"Nhap so bao dand cua thi sinh can loai
cin.ignore(1); cin>>bd; l.remove(bd); break;
case 6:
do
{
clrscr();
cout<<"na. Sap xep theo diem tang dan"; cout<<"nb. Sap xep theo diem giam dan"; cout<<"nc. Quay lai(nhan r):"; cout<<"n Ban chon:";
cin>>lc; switch(lc)
{
case 'a':
l.sort_asc(); break;
case 'b': l.sort_desc(); break;
}
}
while(lc!='r'); break;
case 7:
do
.....