Program sorting c++

#include<iostream>
#include<conio.h>
using namespace std;
int main()
{
menu:
int pilih,data[6],i,temp,b;
cout<<"\t\t==>>Program SORTING data\n";
cout<<"Input banyak data yang akan di sorting : ";cin>>b;
for (int i=0;i<b;i++){
cout<<"Input nilai ke-"<<i+1<<" : ";cin>>data[i];
}
cout<<"==>>|Data sebelum di sorting : ";
for(int i=0;i<b;i++)
{
cout<<data[i]<<". ";
}
cout<<endl;
int n;
for(int i=0;i<n;i++){
for(int j=i+1;j<n;j++){
if (data[i]>data[j]){
temp=data[i];
data[i]=data[j];
data[j]=temp;
}
}
}
cout<<"==>>|Data setelah sorting   : ";
for (int i=0;i<n;i++){
cout<<data[i]<<". ";}
getch();
cout<<"\n\n\nIngin menginput kembali? ya=1||tidak=0\n";
cin>>pilih;
if(pilih==1)
goto menu;
else
cout<<"==>>Terimaksih "<<endl;
}