Coorect the Following C++ code: #include #include #include #include #include using namespace std; // Function to print available currencies for exchange void printCurrencies() {     cout << "Available currencies for exchange: " << endl;     cout << "SAR --> Saudi Arabia Riyal" << endl;     cout << "KWD --> Kuwaiti Dinar" << endl;     cout << "QAR --> Qatar Riyal" << endl;     cout << "AED --> United Arab Emirates Dirham" << endl;     cout << "BHD --> Bahraini Dinar" << endl;     cout << "OMR --> Omani Rial" << endl; } // Function to convert currency double convertCurrency(string fromCurrency, string toCurrency, double amount) {     ifstream exchangeRateFile("ExchangeRate.txt"); // Open file for reading     string line;          double desiredRate=0;          while (getline(exchangeRateFile, line)) { // Read file line by line         int i=0;         string from, rate, to;          while (line[i] != ' ') {             i++;         }         i++;         while (line[i] != ' ') {             from += line[i];             i++;         }         i++;         while (line[i] != ' ') {             rate += line[i];             i++;         }         i++;         while (i < line.length()) {             to += line[i];             i++;         }         if(from==fromCurrency && to.substr(0,to.length()-1)==toCurrency){             desiredRate=stod(rate);             break;         }     }     exchangeRateFile.close(); // Close file     return amount * desiredRate; // Return converted amount } string toupper(string currency){     string s="";     for (char c : currency) {         s += toupper(c);     }     return s; } int main() {     printCurrencies(); // Print available currencies     string fromCurrency, toCurrency;     double amount;     cout << "Enter the currency you want to convert from: ";     cin >>fromCurrency;     fromCurrency = toupper(fromCurrency);     while(fromCurrency != "SAR" && fromCurrency != "KWD" && fromCurrency != "QAR" && fromCurrency != "AED" && fromCurrency != "BHD" && fromCurrency != "OMR"){         cout << "Invalid input, Please Enter again: ";               cin >>fromCurrency;         fromCurrency = toupper(fromCurrency);     }     cout<< "Enter the currency you want to convert to: ";         cin >>toCurrency;     toCurrency = toupper(toCurrency);     while(toCurrency != "SAR" && toCurrency != "KWD" && toCurrency != "QAR" && toCurrency != "AED" && toCurrency != "BHD" && toCurrency != "OMR"){         cout<< "Invalid input, Please Enter again: ";         cin >>toCurrency;         toCurrency = toupper(toCurrency);     }     cout<<"Enter the amount you want to convert: ";      cin >> amount;     cout << amount << " " << fromCurrency << " = " << convertCurrency(fromCurrency, toCurrency, amount) << " " << toCurrency << endl;     return 0; }       to get the below result: Sample run1: The currencies we have exchange for are: SAR--> Saudi Arabia Riyal KWD --> Kuwaiti Dinar QAR --> Qatar Riyal AED--> United Arab Emirates Dirham BHD --> Bahraini Dinar OMR --> Omani Rial What is the currency you have? SaR What is the currency you want to exchange it for? aed How much money you want to exchange? 707 707 SAR is 692.86 AED    Sample run2: The currencies we have exchange for are: SAR --> Saudi Arabia Riyal KWD --> Kuwaiti Dinar QAR --> Qatar Riyal AED --> United Arab Emirates Dirham BHD --> Bahraini Dinar OMR--> Omani Rial What is the currency you have? Kuwaiti Incorrect abbreviation please provide it again Sad Incorrect abbreviation please provide it again SAR What is the currency you want to exchange it for? BHR Incorrect abbreviation please provide it again BHD How much money you want to exchange? 50 50 SAR is 5 BHD   Please note that the . “ExchangeRate.txt” file contain: 1.00 SAR 0.08 KWD 1.00 SAR 0.97 QAR 1.00 SAR 0.98 AED 1.00 SAR 0.10 BHD 1.00 SAR 0.10 OMR 1.00 QAR 0.08 KWD 1.00 QAR 1.01 AED 1.00 QAR 0.10 BHD 1.00 QAR 0.11 OMR 1.00 KWD 12.00 AED 1.00 KWD 1.23 BHD 1.00 KWD 1.26 OMR 1.00 AED 0.10 BHD 1.00 AED 0.10 OMR 1.00 BHD 1.02 OMR