reads in n numbers from the user storing the numbers in a vector. Print the numbers from the ends inwards (last, first, second last, second, third）

How many numbers will you enter?: 5

Enter a number: 3

Enter a number: 5

Enter a number: 6

Enter a number: 4

Enter a number: 3

Your numbers from outside to middle are: 3 3 4 5 6

Let the element output follow the following rules: output last bit, output first, output penultimate second, input second

This is my code

%current is going from 1 to length of vector(maybe)
current = 0;
num = input('How many numbers will you enter?: ');
vector = [];

for i = 1:num
    ele = input("Please enter the elements: ");
    vector = [vector ele];
end

for current = 0:ceil(length(vector)/2)
    %A = input('Enter a number');
    fprintf("%d %d ",vector(length(vector)-current),vector(current+1));
    %A(length(A)-current),A(current+1));
end

It will have extra numbers in the last. like that

How many numbers will you enter : 6

Please enter the elements: 1

Please enter the elements: 2

Please enter the elements: 3

Please enter the elements: 4

Please enter the elements: 5

Please enter the elements: 6

6 1 5 2 4 3 3 4

How to improve this code?

[Rik]

@Cheryl Pope:

For this question you have even less standing than the other question you requested deletion for.

You can contact Mathworks support if you want either to be deleted, I will not do so.

Answer 1

[Rik]

You are asking the user for the number of elements. You should use that to pre-allocate the vector array so you can use indexing in your first loop.

For the second loop you should create a vector with the appropriate indices. Changing ceil to floor will not fix the problem. Perhaps the sort function can help you generate the indices.

[Shuoze Xu]

What do you mean pre-allocate the vector?

Like that?

count = input("How many numbers will you enter?: ");
numberVector = zeros(1, count);

[Rik]

Yes, that is what I meant