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:
var arr = [
[1, 2, 3],
[4, 5, 6],
[7, 8, 9]
];
arr[0].reverse()
arr[1].reverse()
arr[2].reverse()
var newarr = arr[0].concat(arr[1], arr[2])
Answer(newarr);
function Answer(arr2)
{
var n = arr2.length;
var step = Math.sqrt(arr2.length) — 1;
for (var i = step; i < n — step; i += step)
{
newarr[i] = 0
}
}
function NestedArray(arr, pivot) { return arr.reduce((a, c, i) => { if (i % pivot === 0) { a.push([]); } return a[a.length — 1].push(c), a; }, []); }
newarr = NestedArray(newarr, 3)
console.log(newarr[0].reverse())
console.log(newarr[1].reverse())
console.log(newarr[2].reverse())
Вывод:
[ 0, 2, 3 ]
[ 4, 0, 6 ]
[ 7, 8, 0 ]
const arr = [
[1, 2, 3],
[4, 5, 6],
[7, 8, 9]
];
for (let i = 0; i < arr.length; i++) {
arr[i][i] = 0;
}
console.log(arr);