Added assignment 2 code

assignment-2.py

@@ -0,0 +1,92 @@
+# DSL - Assignment 2
+
+students=[]
+marks=[]
+total_students_in=int(input("Total number of students are: \t"))
+
+# Entering marks
+def total_students_fn():
+	for i in range(total_students_in):
+		marks_in=int(input("Enter marks for DSA subject for each student (out of 50) (enter -1 for absent students): \t"))
+		marks.append(marks_in)
+	print("Marks of", total_students_in, "students in DSA subject are:", marks)
+
+total_students_fn()
+
+# Option 1 = Average
+def average_marks():
+	for i in marks:
+		if i<0:
+			break
+		else:
+			average_calc=sum(marks)/total_students_in
+	print("Average score of", total_students_in, "is: \t", average_calc)
+
+# Option 2 = Highest and lowest
+def high_low():
+   mini=marks[0]
+   maxi=marks[0]
+   for i in range (len(marks)):
+      if (maxi<marks[i] and marks[i]>-1):
+         maxi=marks[i]
+   for j in range (len(marks)):
+      if (mini>marks[j] and marks[j]>-1):
+         mini=marks[j]
+   print("Highest marks are: \t", maxi)
+   print("Lowest marks are: \t", mini)
+   
+# Option 3 = Absent
+def absent():
+	absent_count=0
+	for i in marks:
+		if i==-1:
+			absent_count+=1	
+	print("Total number of absent students out of", total_students_in, "are: \t", absent_count)
+
+# Option 4 = Highest freq
+def high_freq():
+   freq_count=0
+   for i in range(len(marks)):
+      if (i>=0):
+         count=0
+         for j in range(len(marks)):
+            if (marks[i]==marks[j]):
+               count+=1
+               if (freq_count<count):
+                  freq_count=count
+      else:
+         break
+   print("Highest frequency is: \t", freq_count)
+
+# Choosing an option
+def choose_optn():
+   while True:
+      print("Choose an operation to perform:")
+      print("1. Average score of all students")
+      print("2. Highest and lowest score out of all students")
+      print("3. Count of students absent for test")
+      print("4. Display marks with highest frequency")
+      print("5. Exit")
+      optn=int(input("Enter option number (1-5): \t"))
+      if optn==1:
+         average_marks()
+         print("Designed and Engineered by Kshitij")
+      elif optn==2:
+         high_low()
+         print("Designed and Engineered by Kshitij")
+      elif optn==3:
+         absent()
+         print("Designed and Engineered by Kshitij")
+      elif optn==4:
+         high_freq()
+         print("Designed and Engineered by Kshitij")
+      elif optn==5:
+         print("## Designed and Engineered by Kshitij\n## END OF CODE.")
+         quit()
+      else:
+         print("\n Invalid option selected. Please choose from range 1 to 5. \n")
+         choose_optn()
+
+choose_optn()
+
+## END OF CODE