2018年10月2日
CF-833B The Bakery（线段树优化Dp）
摘要： Some time ago Slastyona the Sweetmaid decided to open her own bakery! She bought required ingredients and a wonder-oven which can bake several types o 阅读全文
posted @ 2018-10-02 10:33 Unstoppable728 阅读(219) 评论(0) 推荐(0) 编辑