test.expect(not validateBattlefield(
[[1, 0, 0, 0, 0, 1, 1, 0, 0, 0],
[1, 0, 1, 0, 0, 0, 0, 0, 1, 0],
[1, 0, 1, 0, 1, 1, 1, 0, 1, 0],
[1, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 1, 0],
[0, 0, 0, 0, 1, 1, 1, 0, 0, 0],
[0, 0, 0, 1, 0, 0, 0, 0, 1, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 1, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0]]),
"Must return false if ships are in contact");

Which ships are in contact?

This code can not get result array like this: [3,1,2,1,3,2,4,4].
The same number can not be together.