bmi calc

#include <string>
#include <cmath>
#include <iostream>
#include <fstream>

using namespace std;

int main()
{
    cout << "Nate's \"Open Source\" BMI Calculator! \n\n";

    double myWeight;
    double myHeight;
    double row1;
    double row2;
    double row3;
    double row4;

    cout << "Enter your height 'SPACE' and then weight and then hit 'ENTER'. \n";

    cin >> myHeight >> myWeight;

    double weight2 = myWeight * 0.45;
    double height2 = myHeight * .025;
    double height3 = height2 * height2;
    double myBmi = weight2 / height3;

    cout << "Your BMI is " << myBmi << endl;

    ifstream bmiTable;
    string tableLine1;
    string tableLine2;
    string tableLine3;
    string tableLine4;

    bmiTable.open("bmi.txt");
    bmiTable >> tableLine1 >> tableLine2 >> tableLine3 >> tableLine4;
    cout << tableLine1 << " \n" << tableLine2 << " \n" << tableLine3 << " \n" << tableLine4 << " \n";






//This is the block of code where I was going to do the extra credit and then got frustrated not knowing how to make a math equation in C++
//where I compare bmi to be in between two possible values which I would assign to 18.5 and 24.9
//

    if (myBmi < 18.5)
        cout << "You are UNDERWEIGHT." << endl;

    else if (18.5 <= myBmi <= 24.9)
        cout << "You are NORMAL." << endl;

    else if (24.9 <= myBmi <= 29.9)
        cout << "You are OVERWEIGHT." << endl;

    else if (myBmi > 30.0)
        cout << "You are OBESE." << endl;




    cin.ignore(256, '\n');
    cin.get();
        return 0;
}