摘要: Dp。参见大神的题解#include#include#include#include#includeconst long long Mod = 1e9+7;const int MAXN = 1e5+5, MAXM = 2e5 + 5;struct Edge{int v,next; E... 阅读全文
posted @ 2015-05-28 14:11 <Dash> 阅读(137) 评论(0) 推荐(0)