How to read specific record number in .dat file in C++?

Cpp program to create items.dat file and insert data into IT:

#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main()
{
    ifstream inFile;
    ofstream outFile;
    string code;
    double price;
    inFile.open("item.dat");
    outFile.open("item.dat");
    for(int i=0;i<5;i++)
    {
        cout<<"Enter code and price: ";
        cin>>code>>price;
        outFile<<code<<" "<<price<<endl;
    }
    inFile.close();
    outFile.close();
    return 0;
}

Program to read first, third and fifth data from “items.dat” file:

#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main()
{
    ifstream inFile;
    string code;
    double price;
    inFile.open("item.dat");
    // function to read first item from file
    inFile>>code>>price;
    cout<<"First item: "<<code<<" "<<price<<endl;
    // function to read third item from file
    inFile>>code>>price;
    inFile>>code>>price;
    cout<<"Third item: "<<code<<" "<<price<<endl;
    // function to read fifth item from file
    inFile>>code>>price;
    inFile>>code>>price;
    inFile>>code>>price;
    cout<<"Fifth item: "<<code<<" "<<price<<endl;
    inFile.close();
    return 0;
}