Shijie

README.md

@@ -19,7 +19,7 @@ Create an example instance, in an editor or a notebook, of a structure for this
 - Jill is 26, a biologist and she is Zalika's friend and John's partner.
 - Zalika is 28, an artist, and Jill's friend
 - John is 27, a writer, and Jill's partner.
-- Nash is 34, a chef, John's cousin and Zalika's landlord.
+- Nash is 34, a writer, John's cousin and Zalika's landlord.
 
 Some things you may wish to consider in your model:
 - Does it allow people who have no job?

group.py

@@ -1,5 +1,62 @@
-"""An example of how to represent a group of acquaintances in Python."""
+group = {
+    "Jill": {
+        "age": 26,
+        "job": "biologist",
+        "relations": {
+            "Zalika": "friend",
+            "John": "partner"
+        }
+    },
+    "Zalika": {
+        "age": 28,
+        "job": "artist",
+        "relations": {
+            "Jill": "friend"
+        }
+    },
+    "John": {
+        "age": 27,
+        "job": "writer",
+        "relations": {
+            "Jill": "partner"
+        }
+    },
+    "Nash": {
+        "age": 34,
+        "job": "chef",
+        "relations": {
+            "John": "cousin",
+            "Zalika": "landlord"
+        }
+    }
+}
+#the maximum age of people in the group
+ages = []
+for i in group:
+    age = group[i]['age']
+    ages.append(age)
+print("the maximum age of people in the group:", max(ages))
 
-# Your code to go here...
+#the average (mean) number of relations among members of the group
+rel_nums = 0
+for i in group:
+    rel_num = len(group[i]['relations'])
+    rel_nums +=rel_num
+ave_num = rel_nums / len(group)
+print("the average (mean) number of relations among members of the group:", ave_num)
 
-my_group =
+#the maximum age of people in the group that have at least one relation
+ages = []
+for i in group:
+    if len(group[i]['relations']) >= 1:
+        age = group[i]['age']
+        ages.append(age)
+print("the maximum age of people in the group that have at least one relation", max(ages))
+
+#the maximum age of people in the group that have at least one friend
+ages = []
+for i in group:
+    if 'friend' in group[i]['relations'].values():
+        age = group[i]['age']
+        ages.append(age)
+print("the maximum age of people in the group that have at least one friend", max(ages))