Write a program that lets you know if you can have a key or not, based on your role at the school.
First ask for the user’s role at the school. They can be a student, administrator, or a teacher. (And remember that capitalization is important! ‘Student’ is not the same as ‘student’.)
Example 1: Administrator or Teacher
For example, if this was the input:
Are you an administrator, teacher, or student?: teacher
This should be the output:
Administrators and teachers get keys!
Example 2: Student
And if this was the input:
Are you an administrator, teacher, or student?: student
This should be the output:
Students do not get keys!
(Note: You should also be able to handle a situation where the user enters a value other than administrator, teacher or student and tell them they must be one of the three choices!)
Example 3: Other
If they input anything else:
Are you an administrator, teacher, or student?: secretary
This should be the output:
You can only be an administrator, teacher, or student!
Ответ:
Данный файл получен объемом в 3 Кбайт.
Объяснение:
Дано:
t = 1 сек
i = 24 бит
D = 1024 Гц
n = 1
Найти: A Кбайт
Решение:
A = D * i * t * n, где А — информационный объём файла, D — частота дискретизации, t — время звучания, i — глубина дискретизации (кодирования), n — формат записи.
A = 1024 Гц * 24 бит * 1 сек * 1 = 24576 бит
А = 24576 / 8 / 1024 Кбайт = 3 Кбайт
Ответ: А = 3 Кбайт.