随笔分类 -  随机化

摘要:#include #define LL long long using namespace std; const LL mod=1e9+7; const int maxn=1e6+10; #define lowbit(x) (x&(-x)) struct BIT { LL**a;int n,m; BIT(){a=0;n=m=-1;} BIT(int n,int m):n... 阅读全文
posted @ 2018-11-01 21:05 BIack_Cat 阅读(153) 评论(0) 推荐(0)