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:
509
Объяснение:
Кол-во цветов N = 256 * 256 * 256 = 2⁸ * 2⁸ * 2⁸ = 2²⁴
, где i — кол-во бит на пиксель
Подставим N:
Отсюда видим, что i=24 бита (на пиксель)
Объем одного изображения V = 800 * 600 * 24 бит = 11 520 000 бит = 1 440 000 байт
Объем диска: 700 Мбайт = 734 003 200 байт
Кол-во изображение тогда равно:
734 003 200 : 1 440 000 = 509,724. ≈ 509 (округление вниз)