maaf kalo salah kamar, saya mau tanya kalo prog di bawah ini di bikin menu gmn, saya ndak ngerti tentang penggabungan array+struct.

#include <iostream>
#include <cstdio>

using namespace std;

struct dataMhs {
   int nim;
   char nama [40];
   float ipk;
};
int main(){

    dataMhs mhs;
    FILE* data;

   cout<<"NIM Anda : ";
   cin>>mhs.nim;
   cout<<"Nama Anda : ";
   fflush(stdin);
   cin.getline(mhs.nama,40);
   cout<<"IPK Anda : ";
   cin>>mhs.ipk;

   data = fopen ("data.dat","wb");
   fread (&mhs,sizeof(mhs),1,data);
   fclose (data);


   data = fopen ("data.dat","rb");
   fread (&mhs,sizeof(mhs),1,data);
   fclose (data);

   cout<<endl;
   cout<<mhs.nim;
   cout<<endl;
   cout<<mhs.nama;
   cout<<endl;
   cout<<mhs.ipk;
   cout<<endl;}
return 0;
};