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应该很好理解吧，是由于每次flip使盘子的位置跳跃一格，即每次flip操作使操作的盘子下标加2或减2后取模In Reply To:这个怎么证明 Posted by:newton88518 at 2006-01-19 13:47:20 由于每次flip使盘子的位置跳跃一格， 即每次flip操作使操作的盘子下标加2或减2后取模， 所以若位置的总数是偶数，则盘子下标奇偶性不变， 若为奇数，则循环一周奇偶性改变，所以可遍历任何位置 Followed by: Post your reply here: |
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