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: по нескольким
Пример:
есть какая-нибудь структура x вида:
struct x{
vector<int> a;
}
Тогда мы можем отсортировать контейнер типа x по таким правилам:
1) ищем первый индекс i такой, что x1.a[i] != x2.a[i]
2) переставляем элементы в нужном порядке.
То есть при равенстве первых k элементов мы идем дальше и проверяем k+1 элемент и так далее.