• Write the code for the following:

  
  

  Modify the program so that the formatted output is shown to the screen and is also written to a text file called `healthResults.txt

  You will need to open the file for writing, ensure it is open (or else exit the program with an error) and close the file when finished writing to it. #include
  #include
  #include

  using namespace std;

  int main() {
  // Constants for activity levels
  const double SEDENTARY = 1.2;
  const double LIGHT_EXERCISE = 1.375;
  const double MODERATE_EXERCISE = 1.55;
  const double HEAVY_EXERCISE = 1.725;

  // Constants for unit conversions
  const double INCHES_TO_METERS = 0.0254;
  const double LBS_TO_KGS = 0.453592;

  // Variables to store user input
  string firstName, lastName, sex;
  int age;
  double heightInInches, weightInLbs;

  // Prompt user for information
  cout << "Health Metrics Calculator 1.0" << endl << endl;
  cout << "Please enter the following information:" << endl;
  cout << "First Name: ";
  cin >> firstName;
  cout << "Last Name: ";
  cin >> lastName;
  cout << "Sex (Male/Female): ";
  cin >> sex;
  cout << "Age: ";
  cin >> age;
  cout << "Height (in inches): ";
  cin >> heightInInches;
  cout << "Weight (in lbs): ";
  cin >> weightInLbs;

  // Convert units
  double heightInMeters = heightInInches * INCHES_TO_METERS;
  double weightInKg = weightInLbs * LBS_TO_KGS;

  // Calculate BMI
  double bmi = weightInKg / (heightInMeters * heightInMeters);

  // Calculate BMR based on sex
  double bmr;
  if (sex == "Male") {
  bmr = 88.362 + (13.397 * weightInKg) + (4.799 * heightInMeters * 100) - (5.677 * age);
  } else if (sex == "Female") {
  bmr = 447.593 + (9.247 * weightInKg) + (3.098 * heightInMeters * 100) - (4.330 * age);
  } else {
  cout << "Invalid input for sex. Please enter Male or Female." << endl;
  return 1;
  }

  // Calculate calories needed to maintain weight for different activity levels
  double sedentaryCalories = bmr * SEDENTARY;
  double lightExerciseCalories = bmr * LIGHT_EXERCISE;
  double moderateExerciseCalories = bmr * MODERATE_EXERCISE;
  double heavyExerciseCalories = bmr * HEAVY_EXERCISE;

  // Display the results
  cout << "\nConverting units..." << endl;
  cout << fixed << setprecision(3);
  cout << "Height in meters: " << heightInMeters << endl;
  cout << "Weight in kg: " << weightInKg << endl;
  cout << "\nCalculating metrics..." << endl;
  cout << "BMI: " << bmi << endl;
  cout << "BMR: " << bmr << " kcal/day" << endl;
  cout << "\n----------------------------------------------" << endl;
  cout << "Health Metrics Summary" << endl;
  cout << "----------------------------------------------" << endl;
  cout << "Name: " << firstName << " " << lastName << endl;
  cout << "Sex: " << sex << endl;
  cout << "Age: " << age << endl;
  cout << "Height: " << heightInMeters << " meters" << endl;
  cout << "Weight: " << weightInKg << " kg" << endl;
  cout << "\nMetrics:" << endl;
  cout << "- BMI: " << bmi << endl;
  cout << "- BMR: " << bmr << " kcal/day" << endl;
  cout << "\nCalories to Maintain Weight based on Activity Level:" << endl;
  cout << "- Sedentary: " << sedentaryCalories << " kcal/day" << endl;
  cout << "- Light Exercise: " << lightExerciseCalories << " kcal/day" << endl;
  cout << "- Moderate Exercise: " << moderateExerciseCalories << " kcal/day" << endl;
  cout << "- Heavy Exercise: " << heavyExerciseCalories << " kcal/day" << endl;
  cout << "\nThank you for using the Health Metrics Calculator!" << endl;
  return 0;
  }