摘要: 一、题意 White Rabbit has a rectangular farmland of n*m. In each of the grid there is a kind of plant. The plant in the j-th column of the i-th row belong 阅读全文
posted @ 2018-07-25 01:06 六花的邪王真眼 阅读(121) 评论(0) 推荐(0) 编辑