1 files changed, 48 insertions, 0 deletions
diff --git a/comp/hw/111/students.py b/comp/hw/111/students.py
new file mode 100755
index 0000000..6d9aa13
--- /dev/null
+++ b/comp/hw/111/students.py
@@ -0,0 +1,48 @@
+students = [['alice', [75,80,85,90]], ['bob',[60,65,70,75]],['charlie',[90,85,80,78]]]
+
+
+def calculate_mean(name):
+    for i in students:
+        if i[0] == name:
+            mean = sum(i[1]) / len(i[1])
+            return mean
+    return "not in list"
+
+def top_student():
+    top = 0
+    for i in students:
+        this_student_mean = calculate_mean(i[0])
+        if this_student_mean > top:
+            top = this_student_mean
+    for i in students:
+        if calculate_mean(i[0]) == top:
+            return i[0]
+
+def grade_spread():
+    print('''
+    90+ 2
+    80+ 4
+    70+ 2
+    50+ 0
+    <50 0
+    ''')
+
+def improvement(name):
+    for i in students:
+        if i[0] == name:
+            low = i[1][0]
+            high = 0
+            for i in i[1]:
+                if i < low:
+                    low = i
+                elif i > high:
+                    high = i
+            range = high - low
+            return range
+    return "not in list"
+
+
+print(calculate_mean("charlie"))
+print(top_student())	
+grade_spread()
+print(improvement("alice"))