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:
0.54030230586814
Программа на PascalABC.NET:
begin
var min := 1.5; // ищем для косинуса, а он не бывает больше 1
var x := 0.0; // начальное значение
while x <= 1.01 do // конечное значение плюс довесок на неточность
begin
var y := Cos(x); // значение функции в точке х
if y < min then // нашли значение меньше
min := y; // запомним его, как минимум
x += 0.1 // увеличим х на шаг
end;
Print(min) // вывели найденный минимум
end.