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!
Объяснение:
Ввести три числа не составляет труда.
Чтобы воспользоваться тригонометрическими функциями (в данном случае sin), подключим библиотеку cmath.
Есть много способов найти максимум трёх чисел, самый лаконичный — подключить библиотеки initializer_list и algorithm. Таким образом, чтобы найти максимальное из сколь угодного количества чисел, достаточно передать их функции max в фигурных скобках, как написано ниже.
—
#include <iostream>
#include <cmath>
#include <initializer_list>
#include <algorithm>
int main() {
double x, y, z;
std::cin >> x >> y >> z;
double u = sin(x);
double maximum = std::max({u, y, z});
std::cout << maximum;
}