From afed44b01b983b799987e3587dca3cf84443744e Mon Sep 17 00:00:00 2001
From: Rongru <ucjurc6@ucl.ac.uk>
Date: Fri, 28 Oct 2022 17:01:28 +0100
Subject: [PATCH 1/3] first_version by RR

---
 group.py | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/group.py b/group.py
index e2ec347..4c23d91 100644
--- a/group.py
+++ b/group.py
@@ -1,5 +1,22 @@
 """An example of how to represent a group of acquaintances in Python."""
 
+
 # Your code to go here...
 
-my_group =
+my_group = {"Jill": {"Age": 26, 
+            "Job": "biologist", 
+            "Relationship": {"Zalika": "friend",
+            "partner": "John"}},
+            
+            "Zalika": {"Age": 28, 
+            "Job": "artist", 
+            "Relationship": {"Jill": "friend"}},
+
+            "John": {"Age": 28,
+            "Job": "writer",
+            "Relationship": {"Jill": "partner"}},
+
+            "Nash": {"Age": 34,
+            "Job": "chef",
+            "Relationship": {"John": "cousin", 
+            "Zalika": "landlord"}}}

From 8fdf02ac9018ef35dffec17b7db00bcfea0be379 Mon Sep 17 00:00:00 2001
From: Rongru <ucjurc6@ucl.ac.uk>
Date: Fri, 28 Oct 2022 18:39:42 +0100
Subject: [PATCH 2/3] added forget, new people and average age function

---
 group.py | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/group.py b/group.py
index 4c23d91..f07b554 100644
--- a/group.py
+++ b/group.py
@@ -20,3 +20,26 @@
             "Job": "chef",
             "Relationship": {"John": "cousin", 
             "Zalika": "landlord"}}}
+
+
+def forget(person1, person2):
+    for name, info in my_group.items():
+        RelationDic = info["Relationship"]
+        if name == person1:
+            RelationDic.pop(person2, None)
+        if name == person2:
+            RelationDic.pop(person1, None)
+
+def add_person(name, age, job, relations = {}):
+    my_group[name] = {"Age": age, "Job": job, "Relationship": relations }
+    
+def average_age():
+    age = 0
+    count_num = 0
+    for name, info in my_group.items():
+        age += info["Age"]
+        count_num += 1
+    average = age/count_num
+    print(f"The average age of {count_num} people in the group is {average}")
+
+ 
\ No newline at end of file

From f095f8ad6346ccddf57a56262b87629bdeb43f1c Mon Sep 17 00:00:00 2001
From: Rongru <ucjurc6@ucl.ac.uk>
Date: Mon, 31 Oct 2022 11:48:30 +0000
Subject: [PATCH 3/3] added summary data in comprehensive expression

---
 group.py | 25 ++++++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

diff --git a/group.py b/group.py
index f07b554..89a05b6 100644
--- a/group.py
+++ b/group.py
@@ -2,11 +2,10 @@
 
 
 # Your code to go here...
-
 my_group = {"Jill": {"Age": 26, 
             "Job": "biologist", 
             "Relationship": {"Zalika": "friend",
-            "partner": "John"}},
+            "John": "partner"}},
             
             "Zalika": {"Age": 28, 
             "Job": "artist", 
@@ -21,6 +20,9 @@
             "Relationship": {"John": "cousin", 
             "Zalika": "landlord"}}}
 
+#forget(person1, person2) which removes the connection between two people in the group
+#add_person(name, age, job, relations) which adds a new person with the given characteristics to the group
+#average_age() which calculates the mean age for the group
 
 def forget(person1, person2):
     for name, info in my_group.items():
@@ -42,4 +44,21 @@ def average_age():
     average = age/count_num
     print(f"The average age of {count_num} people in the group is {average}")
 
- 
\ No newline at end of file
+###Try some of the functions
+#add_person("Rongru",24,"Student",{"John": "friend"})
+
+#forget("Jill","Zalika")
+#my_group
+
+
+##Add the following comprehensive relations
+#the maximum age of people in the group
+#the average (mean) number of relations among members of the group
+#the maximum age of people in the group that have at least one relation
+#[more advanced] the maximum age of people in the group that have at least one friend
+
+MaxiAge_comprehend = max([info["Age"] for name, info in my_group.items()])
+Mean_relation = sum([len(info["Relationship"]) for name, info in my_group.items()])/len(my_group.keys())
+MaxAge_relation = max([info["Age"] for name, info in my_group.items() if len(info["Relationship"]) >1])
+MaxAge_friend = max([info["Age"] for name, info in my_group.items() if "friend" in info["Relationship"].values()])
+