摘要: #include #include using namespace std; struct DLX { const static int maxn=750,maxm=350,maxnode=maxn*maxm; int n,m,sz,anssz; int u[maxnode],d[maxnode],l[maxnode],r[maxnode],row[maxnode]... 阅读全文
posted @ 2018-10-11 05:26 BIack_Cat 阅读(111) 评论(0) 推荐(0)
摘要: #include using namespace std; #define LL long long const int maxn=2e5+10; struct BIT //binary index tree { int t[maxn],n; int a[maxn]; #define lowbit(x) (x&(-x)) void init(int n_) ... 阅读全文
posted @ 2018-10-11 04:26 BIack_Cat 阅读(391) 评论(0) 推荐(0)