#include <iostream>

using namespace std;




void Menu(){ // <- The menu is (mostly) static, no need for it to be in main
    cout << "Simple temperature converter \n";
    cout << "Conversion options \n [1]C to F \n [2]F to C \n [3]Quit" << endl;
    cout << "Select option [1-3]: ";
}

double C, F;

double convertC(double C, double F){ // <- converts to Celsius
    C = (F - 32) / 1.8;
    return(C);
}

double convertF(double C, double F){ // <- converts to fahrenheit
    F = (C * 1.8) + 32;
    return(F);
}

int main() {
    int input;
    Menu();
    cin >> input;

    if (input == 3) {
        cout << "Quitting..." << endl;
    }

    else if (input == 1){
        cout << "Enter temperature in Celsius: ";
        cin >> input;
        C = input;
        cout << convertF( C, F) << endl;
    }

    else if (input == 2){
        cout << "Enter temperature in Fahrenheit: ";
        cin >> input;
        F = input;
        cout << convertC(C, F);
    }

    return(0);
}





//
// Created by fuze on 8/13/22.
//