Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the examples below.
Examples:
Input n = 3
Output a = [ 1 2 3
6 5 4
7 8 9 ] Input n = 4
Output a = [ 1 2 3 4
8 7 6 5
9 10 11 12
16 15 14 13 ]
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nice one
good one
i got same solution on matlab, but i don't know why i didn't here
I am no expert, but does anyone else think that the first test case is flawed? "%%n = 4;" instead of " %% (new line) n = 4;" So, "n" is never defined for the first case. Am I right? If not, I apologize!
that seems legit
nice one
Really enjoyed this one.
Can someone help me? My solution works on my matlab but gives me an error during the test! What am I supposed to do ? :(
I think the answer to test suite 5 should be c = 2 since the first row is 0.21 and the second is 0.26. Please correct me if I'm wrong.
Awesome!
Awesome
Great
Check this out.
function b = back_and_forth(n)
b=1:n^2;
b=reshape(b,n,n)';
for i=2:2:n
b(i,:)=fliplr(b(i,:));
end
end
It appears a '\r' is needed after the %% in the first test of the solution to make it process properly.
The problem with the first test case has been fixed here.
This code
b=vec2mat(1:n^2,n)
b(2:2:end,:)=fliplr(b(2:2:end,:))
work in Matlab, why it doesn't works on site?