Sao cái phần sắp xếp của em nó không chạy được vậy ạ? Mong mọi người giúp đỡ em.
#include<iostream>
#include<string.h>
using namespace std;
class hang
{ public:
string mahang,tenhang;
float dongia;
int soluong;
public:
float thanhtien;
void nhap()
{
cout<<"Nhap ma hang: ";
fflush(stdin);
getline(cin,mahang);
cout<<"Nhap ten hang: ";
fflush(stdin);
getline(cin,tenhang);
cout<<"Nhap don gia: ";
cin>>dongia;
cout<<"Nhap so luong: ";
cin>>soluong;
thanhtien=1.0*dongia*soluong;
}
void xuat()
{
cout<<"Ma hang: "<<mahang<<endl;
cout<<"Ten hang: "<<tenhang<<endl;
cout<<"Don gia: "<<dongia<<endl;
cout<<"So luong: "<<soluong<<endl;
cout<<"Thanh tien: "<<thanhtien<<endl;
}
friend class hoadon;
friend void xuatm();
friend void sapxep();
};
class hoadon
{ public:
string mahd;
int d,m,y;
string nv;
string manv;
string tenncc,mancc;
float sum;
public:
hang x[100];
int n;
void nhap()
{
cout<<"Nhap ma hoa don: ";
fflush(stdin);
getline(cin,mahd);
cout<<"Nhap ngay thang nam: ";
cin>>d>>m>>y;
cout<<"Nhap nhan vien: ";
fflush(stdin);
getline(cin,nv);
cout<<"Nhap ma nhan vien: ";
fflush(stdin);
getline(cin,manv);
cout<<"Nhap ten nha cung cap: ";
fflush(stdin);
getline(cin,tenncc);
cout<<"Nhap ma nha cung cap: ";
fflush(stdin);
getline(cin,mancc);
cout<<"Nhap so don hang: ";
cin>>n;
for(int i=0;i<n;i++)
{ cout<<"Nhap thong tin don hang "<<i+1<<endl;
x[i].nhap();
}
}
void xuat()
{
cout<<"Ma hoa don: "<<mahd<<endl;
cout<<d<<"/"<<m<<"/"<<y;
cout<<"Nhan vien: "<<nv<<endl;
cout<<"Ma nhan vien: "<<manv<<endl;
cout<<"Ten nha cung cap: "<<tenncc<<endl;
cout<<"Ma nha cung cap: "<<mancc<<endl;
for(int i=0;i<n;i++)
{ cout<<"Thong tin don hang "<<i+1<<endl;
x[i].xuat();
sum=sum+x[i].thanhtien;
}
cout<<"Tong tien la: "<<sum<<endl;
}
void count()
{ int count=0;
for(int i=0;i<n;i++)
{
if(x[i].thanhtien>500)
cout<<count++;
}
cout<<"So hoa don co don hang > 500 la: "<<count<<endl;
}
};
void sapxep(hoadon &a,int n)
{ hang tg;
for(int i=0;i<n-1;i++)
{
for(int j=i+1;j<n;i++)
{
if(a.x[i].thanhtien>a.x[j].thanhtien)
{
hang tg=a.x[i];
a.x[i]=a.x[j];
a.x[j]=tg;
}
}
}
}
void xuatm(hoadon &a,int n)
{
for(int i=0;i<n;i++)
{
a.x[i].xuat();
}
}
int main()
{
hoadon a;
cout<<"NHAP THONG TIN"<<endl;
a.nhap();
cout<<"XUAT THONG TIN"<<endl;
a.xuat();
a.count();
sapxep(a,a.n);
xuatm(a,a.n);
}
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