CURRENCY CONVERTER 2.0

 #include <iostream>

#include<map>

#include<string>

using namespace std;

class currency{

    map<pair<string,string>,double>converter;

public:

currency(){

    converter[{"USD", "INR"}] = 83.12;

        converter[{"INR", "USD"}] = 0.012;

        converter[{"USD", "KWD"}] = 0.31;

        converter[{"KWD", "USD"}] = 3.25;

        converter[{"GBP", "INR"}] = 105.6;

        converter[{"INR", "GBP"}] = 0.0094;

        converter[{"AED", "USD"}] = 0.27;

        converter[{"USD", "AED"}] = 3.67;

}

void convert(){

    string fromCurrency,toCurrency;

    float amount;

    cout<<"\navailable currencies:USD,INR,KWD,GBP,AED\n";

    cout<<" enter from currency code "<<endl;

    cin>>fromCurrency;

    cout<<" enter to currency code "<<endl;

    cin>>toCurrency;

    cout<<" enter amount "<<endl;

    cin>>amount;

    pair<string,string>key={fromCurrency,toCurrency};

    if(converter.find(key)!=converter.end()){

        float rate=converter[key];

        float result=rate*amount;

        cout << amount << " " << fromCurrency << " = " << result << " " << toCurrency << endl;

    }else {

            cout << "Conversion rate not found.\n";

        }      

}

};

 

 int main() {

 currency c;

    char choice;

    do {

        c.convert();

        cout << "\nDo you want to convert again? (y/n): ";

        cin >> choice;

    } while (choice == 'y' || choice == 'Y');

    cout << "Thank you for using the Currency Converter.\n";

    return 0;

}