摘要:
题目描述 Before the start of contest, there are n ICPC contestants waiting in a long queue. They are labeled by 1 to n from left to right. It can be easil 阅读全文
摘要:
强烈推荐https://blog.csdn.net/wust_zzwh/article/details/52100392,写的真的太棒了Orz,(所以下面的都引自这篇博客咳咳 一、模板 数位dp是一种计数用的dp,一般就是要统计一个区间[le,ri]内满足一些条件数的个数。所谓数位dp,是在数位上进 阅读全文