Can anyone fix my program for me? ;-;

Question

#include <iostream>
#include <conio.h>
using namespace std;
int a,b;
void inputbook(int b);
void display(int i);
void dismenu();
void pickmenu(int a, int b);
struct bookrec{
int sr;
int price;
}bookrec[3];
int main()
{
int a,b;
pickmenu(a,b);
getch();
}
void dismenu()
{
int a,b;
cout<<"Press 1 to enter record"<<endl;
cout<<"Press 2 to display record"<<endl;
cout<<"Press 3 to exit";
cin>>a;
pickmenu(a,b);
}
void inputbook(int b)
{
switch(b){
case 1:{
bookrec[0];
cout<<"Enter Sr.no of book 1: ";
cin>>bookrec[0].sr;
cout<<"Enter price of book 1: ";
cin>>bookrec[0].price;}
break;
case 2:
{bookrec[1];
cout<<"Enter Sr.no of book 2: ";
cin>>bookrec[1].sr;
cout<<"Enter price of book 2: ";
cin>>bookrec[1].price;}
break;
case 3:
{bookrec[2];
cout<<"Enter Sr.no of book 3: ";
cin>>bookrec[2].sr;
cout<<"Enter price of book 3: ";
cin>>bookrec[2].price;}
break;
}
}
void display(int i)
{
char n;
bookrec[i];
cout<<"Type a if you want to know the price of a particular book: ";
cout<<"Type b if you want to know the price of all books: ";
cin>>n;
if (n=='a'){
cout<<"Enter serial no. of book: ";
cin>>i;
cout<<"Price is: "<<bookrec[i].price;
}
else if(n=='b'){
cout<<"Price of book with serial no."<<bookrec[0].sr<<"is: "<<bookrec[0].price;
cout<<"Price of book with serial no."<<bookrec[1].sr<<"is: "<<bookrec[1].price;
cout<<"Price of book with serial no."<<bookrec[2].sr<<"is: "<<bookrec[2].price;
}
}
void pickmenu(int a, int b)
{
switch (a)
{case 1:{
cout<<"Press 1 to enter book 1 record"<<endl;
cout<<"Press 2 to enter book 2 record"<<endl;
cout<<"Press 3 to enter book 3 record"<<endl;
cout<<"Press 4 to go to main menu"<<endl;
cout<<"Press 5 to exit"<<endl;
do{
cout<<"Select your choice";
cin>>b;
if (b==1||b==2||b==3){
inputbook(b);
}
else if (b==4){
dismenu();
}
else if (b==5)
{
return 0; //supposed to exit here

}
}while(b==1||b==2||b==3||b==4||b==5);}
break;
case 2:
{i

Answer 1

Anyone fixing this pls add string library too, forgot about it. but still doesnt work tho.

Answer 2

done its on my home page i think

Answer 3

the code is