Why the editorial hasn't been removed yet?

Contest is wasted! unrated this is what hackerank does now

For this case:

4
1 0 0 1
0 1 1 0
0 0 0 0
0 0 0 0

We can exchange the top left 1*2 rectangle with top right 1*2 rectangle and get a 2*2 square.

But the answer of author's code is 1.

it is refrecing in 1 minute 30 times how can i write code

whats happening with the editor??