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+/*Tyler Taormina
+ * Midterm challenge
+ *
+ * Description: For the midterm challenge I decided to build a simple calculator 
+ * that displays an estimated yearly cost of dog food based on a few factors
+ * that the user provides. These factors are the size of the dog and the type of
+ * food that the owner would prefer to feed their dog. The two choices of dog 
+ * food are 'organic' and 'regular'. Code and Run included. 
+ *
+ */
+
+
+#include <iostream>
+using namespace std;
+
+int main();
+void yearlyCost (int, float, float&, int);
+void dogInfo(int&);
+void foodInfo(int&);
+void determine_servings(int, float&);
+void bagsPerWeek (int, float, float&);
+void display(float);   
+int main() 
+{
+       
+    int const WEEKS = 56; //weeks in a year
+    int const DAYS = 7; //days per week
+    int const SERVING_PER_BAG = 20;
+    float const ORG=29.99, REG=19.99; 
+    int dog=0;
+    float day_servings=0;
+    int foodType=0; 
+    float weekly_portion=0.0;
+    float cost=0.0;
+    float total_cost=0.0;
+
+    dogInfo(dog);
+    determine_servings(dog, day_servings);
+    foodInfo(foodType);
+    bagsPerWeek(DAYS, day_servings, weekly_portion);
+    yearlyCost(WEEKS, weekly_portion, total_cost, foodType);
+    display(total_cost);
+
+    return 0;
+}
+
+void dogInfo(int& dog) 
+{
+    cout << "\n\nThis program will help you determine the yearly cost of dog food." << endl;
+    cout << "First, we will ask you a few questions!" << endl;
+    cout << "******************************************************************\n\n" << endl;  
+    cout << "What size dog do you have?\n\n" << endl;
+    cout << "Press 1 for a small dog." << endl;
+    cout << "Press 2 for a medium dog." << endl;
+    cout << "Press 3 for a large dog." << endl;
+    cout << "Press 4 if you are unsure." << endl;
+    cin >> dog;
+}
+
+void foodInfo(int& foodType) 
+{
+    cout << "\n\nLets talk about Dog food for a moment." << endl;
+    cout << "******************************************************************\n\n" << endl;
+    cout << "What kind of dog food would you prefer. Organic or Original?\n\n" << endl;
+    cout << "Enter 1 for Organic." << endl;
+    cout << "Enter 2 for Original." << endl;
+    cin >> foodType; 
+
+    if (foodType > 2 || foodType < 1)
+    {
+        cout << "\n\nSorry. These are the only food choices we offer.\n";
+        cout << "Please reenter your food choice.";
+        foodInfo(foodType);
+    }
+}
+
+void determine_servings(int dog, float& day_servings) 
+{
+    switch (dog) {
+        // small dog
+        case 1:
+           day_servings = 1;
+           break;
+        
+        case 2:
+            day_servings = 1.5;
+            break;
+
+        case 3:
+            day_servings = 2;
+            break;
+
+        case 4:
+            cout << "\n\nGenerally a small dog is a dog that weighs under 20lbs.\n";
+            cout << " A medium dog weighs anywhere from 20lbs to 50lbs and\n";
+            cout << " a large dog would weigh over 50lbs. Hope this helps\n";
+            cout << " in determining the correct size for your dog. Lets\n";
+            cout << " try again!" << endl;
+            main();
+
+        default:
+            cout << "WHOOPS! INVALID ENTRY. PLEASE TRY AGAIN." << endl;
+            main();
+    }
+} 
+
+ 
+void bagsPerWeek(int DAYS, float day_servings, float& weekly_portion)
+{
+    weekly_portion = (day_servings * DAYS) / 7;
+}
+
+void yearlyCost(int WEEKS, float weekly_portion, float& total_cost, int foodType)
+{
+    float yearly_bags = 0.0;
+    float const ORG=29.99, REG=19.99;
+
+    yearly_bags = weekly_portion * WEEKS;
+
+    if (foodType == 1)
+        total_cost = yearly_bags * ORG;
+    else
+        total_cost = yearly_bags * REG;
+
+}
+
+void display(float total_cost)
+{
+    cout << "\n\n\nBased on the information you have entered, here is what we came up with.\n\n\n";
+    cout << "The estimated yearly cost of your dogs food is: $" << total_cost << endl;
+    cout << "Remember that this is estimation is based upon veterinary recommendations" << endl;
+    cout << "If your dog experiences any symptoms that you believe are related to diet,\n";
+    cout << "immediately contact a veterinary clinic." << endl;
+    cout << "Thanks for participating!" << endl;
+}