— Is you want say I don't know yet database???
I want to ask what the (probably assignment) is about. Do you have to write your own basic database or are you asking how to setup a way with a pre-existing database to store the data?
— What does mean ( %.2f )?
— Float precision two signs
— I didn't understand your purpose but I look for answer . I am sorry.
— With your hands
— You need to have a specific structure of your fileLike organizing it asstudentNumberstudentNameSubject1Subject2
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— ThenYou get the average by summing the students results and dividing it by the number of Students
— Or maybe by typing lol
— Yas of course added to Gender and average ..