2018年12月11日
W - Pasha and Phone CodeForces - 595B （收益颇丰的数学题
摘要： Pasha has recently bought a new phone jPager and started adding his friends' phone numbers there. Each phone number consists of exactly n digits. Also 阅读全文
posted @ 2018-12-11 18:48 易如鱼 阅读(257) 评论(0) 推荐(0) 编辑