finish tutorial tasks

.gitignore

@@ -1,2 +1,5 @@
 multiagent1/
 __pycache__/
+/.vscode
+/.devcontainer
+/.github

tutorial/addition.py

@@ -18,6 +18,4 @@ Run python autograder.py
 
 
 def add(a, b):
-    "Return the sum of a and b"
+    return a+b
-    "*** YOUR CODE HERE ***"
-    return 0

tutorial/buyLotsOfFruit.py

@@ -35,7 +35,9 @@ def buyLotsOfFruit(orderList):
     Returns cost of order
     """
     totalCost = 0.0
-    "*** YOUR CODE HERE ***"
+    for item in orderList:
+        fruit, numPounds = item
+        totalCost += fruitPrices[fruit] * numPounds
     return totalCost
 
 

tutorial/shopSmart.py

@@ -30,7 +30,11 @@ def shopSmart(orderList, fruitShops):
         fruitShops: List of FruitShops
     """
     "*** YOUR CODE HERE ***"
-    return None
+    best_shop=fruitShops[0]
+    for show in fruitShops:
+        if best_shop.getPriceOfOrder(orderList)>show.getPriceOfOrder(orderList):
+            best_shop=show
+    return best_shop
 
 
 if __name__ == '__main__':