3 ms·
One of the constraints of the problem is that your friend can't touch the board, so, unless he has IR vision, that could be problematic.
by JonathonW 12y ago
One of the constraints of the problem is that your friend can't touch the board, so, unless he has IR vision, that could be problematic.
- spdustin 12y agoDoesn't have to touch the board. Just the coins. It's semantic distinction, sure, but if the jailer is capricious enough to envision this challenge, he should be impressed by a solution's cleverness.