CODEWITHSUNDEEP
pythonpython-3.xwhile-loop
Nuñes
Nuñes

Reputation: 107

Specific application of the while loop

I wonder if you could help me with this practical exercise:

Make a Program that asks for the 2 grades of 2 students, calculate and store the average of each student in a list, print the number of students with an average greater than or equal to 7.0.

I managed to do it using the for loop, but I would like to use the while loop. I'm trying this code, but the list of averages is not coming out correctly. I appreciate any help.

notesStudents = []
listNotes = []
student = 1
notes = 1
average = 0
while student <= 2:
    while notes <= 2:  
        notesStudents.append(float(input(f"What is the {notes}ª grade of the Student {student}?")))
        notes += 1
    notes = 1
    student += 1
    average += notesStudents[notes]
    average = average / 3
    listNotes.append(average)
print(listNotes)

Upvotes: 0

Views: 79

Answers (1)

tobias_k
tobias_k

Reputation: 82939

The notes and studentNotes variables should be re-initialized within the loop, otherwise you just keep appending to the same list of studentNotes. Also, right now you just set average to the studentNodes[1] / 3, which is not correct. You should get the sum of all the notes and divide them by the proper number.

listNotes = []
student = 1
while student <= 2:
    notes = 1
    notesStudents = []
    while notes <= 2:  
        notesStudents.append(float(input(f"What is the {notes}ª grade of the Student {student}?")))
        notes += 1
    average = sum(notesStudents) / len(notesStudents)
    listNotes.append(average)
    student += 1
print(listNotes)

This would however be much simpler and less verbose with for loops and maybe even a list comprehension:

listNotes = []
for student in range(1, 3):
    notesStudents = [float(input(f"What is the {n}ª grade of the Student {student}? "))
                     for n in range(1, 3)]
    average = sum(notesStudents) / len(notesStudents)
    listNotes.append(average)
print(listNotes)

Upvotes: 0

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