Ace Legona 09/03/2017 at 19:37
No. Let the number of stones
in the three piles be \(a, b\) and \(c\),
respectively. Consider (mod \(3\)) of these
numbers. In the beginning, they are \(1, 2, 0\). After one operation, they become \(0, 1, 2\) no matter which two piles have stones
transfer to the third pile. So the
remainders are always \(0, 1, 2\) in some
order. Therefore, all piles having \(12 \) stones are impossible.
Neymar Jr 08/04/2017 at 17:06
i don't know.and you?
Please help falcon handsome to solve this problem!