CS201 Solution

//AB
//Currency Exchange Programme
#include
using namespace std;
/*
1 Euro = 112 Rupees.

1 Dollar = 84 Rupees.

1 Euro = 1.33 Dollars

1 Dollar = 0.75 EUR*/

int main()
{
char myCur, convCur;
double myRupees(0), myEuros(0), myDollars(0);
double convertedAmount(0);
bool flag = false;
while(flag == false)
{
cout << "Welcome to the Currency Exchange Rate Program!" << endl << endl << endl;
cout << "Key Description\n" << endl;
cout << "R Pakistani Rupees" << endl;
cout << "E European Euro" << endl;
cout << "D American Dollar" << endl << endl;
while( myCur != 'R' && myCur != 'E' && myCur != 'D')
{
cout << "Please select the key for the currency you have: ";
cin >> myCur;
myCur = toupper(myCur);
if(myCur == 'R' )
{
cout << "Please enter the amount of Rupees you have: ";
cin >> myRupees;
}
else if(myCur == 'E')
{
cout << " Please enter the amount of Euros you have: ";
cin >> myEuros;
}
else if(myCur == 'D')
{
cout << "Please enter the amount of Dollars you have: ";
cin >> myDollars;
}
else
{
cout << "Please enter a valid key" << endl;
}
}

do{
cout << "Please select the key for the currency you want to convert to: ";
cin >> convCur;
convCur = toupper(convCur);
}while(myCur == convCur);

if (myCur == 'R' && convCur == 'E')
{
// 1 Euro = 112 Rupees.
convertedAmount = myRupees / 112;
}
if (myCur == 'R' && convCur == 'D')
{
//1 Dollar = 84 Rupees.
convertedAmount = myRupees / 84;
}
if (myCur == 'E' && convCur == 'R')
{
// 1 Euro = 112 Rupees.
convertedAmount = myEuros * 112;
}
if (myCur == 'E' && convCur == 'D')
{
// 1 Euro = 1.33 Dollars
convertedAmount = myEuros * 1.33;
}
if (myCur == 'D' && convCur == 'R')
{
//1 Dollar = 84 Rupees.
convertedAmount = myDollars * 84;
}
if(myCur == 'D' && convCur == 'E')
{
// 1 Euro = 1.33 Dollars
convertedAmount = myDollars / 1.33;
}

if(myCur == 'R')
{
cout << myRupees << " Rupees converted into ";
}
if(myCur == 'E')
{
cout << myEuros << " Euros converted into ";
}
if(myCur == 'D')
{
cout << myDollars << " Dollars converted into ";
}

if( convCur == 'R')
{
cout << convertedAmount << " Rupees" << endl;
}
if(convCur == 'E')
{
cout << convertedAmount << " Euros" << endl;
}
if(convCur == 'D')
{
cout << convertedAmount << " Dollars" << endl;
}

char answer;
cout << "\nWould you like to run another conversion? (y/n)" << endl;
cin >> answer;
answer = tolower(answer);
if (answer == 'n')
{
flag = true;
}
system("CLS");
myCur = '\0';
}
system("Pause");
return 0;
}