////The sums work out as 3.5 antennas for robot A and 5.5 for robot B but an antenna either works or it doesn't. Even if it is broken in half, a working half-antenna should count as 1 and a non-working half-antenna should count as zero.////

I jacked that problem up deliberately for gnu who apparently didn't waste two seconds on it. Leave it to Doug to do it for him. And now you've paid for your insulin. Or your insolence. Or maybe both. So here we are.

By the way, your answer appears to be correct.