Problem 11. Back and Forth Rows

Solution 989219

Submitted on 2 Oct 2016

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Tomas Macha on 2 Oct 2016

Why is this not working please?

a = ones(n,n);
for i = 1:n^2;
a(i) = i;
end
a = a'

I've tried this in school and it worked fine... :O Could you please help and explain? :)

Allen on 10 Oct 2017

Look closer at the requirements. Even rows should be flipped, such that their values are in descending order when reading from left-to-right.

Test	Status	Code Input and Output
1	Fail	n = 5; a = [ 1 2 3 4 5; 10 9 8 7 6; 11 12 13 14 15; 20 19 18 17 16; 21 22 23 24 25]; assert(isequal(a,back_and_forth(n))); Output argument "b" (and maybe others) not assigned during call to "back_and_forth".

Test

Status

Code Input and Output

Fail

n = 5; a = [ 1 2 3 4 5; 10 9 8 7 6; 11 12 13 14 15; 20 19 18 17 16; 21 22 23 24 25]; assert(isequal(a,back_and_forth(n)));

Output argument "b" (and maybe others) not assigned during call to "back_and_forth".