2018年7月15日
HDU - 6185 Covering（暴搜+递推+矩阵快速幂）
摘要： Covering Covering Bob's school has a big playground, boys and girls always play games here after school. To protect boys and girls from getting hurt w 阅读全文
posted @ 2018-07-15 16:22 yzm10 阅读(402) 评论(0) 推荐(1) 编辑