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:
#include <stdio.h>
#include <math.h>
float eps = 0.000001;
int main()
{
float n; scanf(«%f», &n);
float a[n];
for (int i=0;i<n;i++)
scanf(«%f», a[i]);
char toCopy = 1;
for (int i=1;i<n;i+=2)
if (abs(round(a[i]) — a[i]) > eps)
{toCopy = 0; break;}
if (toCopy)
int b[n/2];
for (int i=n-(n%2), j=0;j<n/2;i-=2, j++)
b[j] = (int)a[i];
}
Объяснение:
Предполагаю, что сначала указывается количество элементов исходного массива. Далее происходит все то, что вы описали. eps — погрешность для определения целого числа, чем оно меньше — тем точнее числа будут определяться как дробные