摘要：
#include#include#include#include#include#include#include#include#include#include#include#define Maxn 1010#define Maxm 100010#define LL __int64#define Abs(x) ((x)>0?(x):(-x))#define lson(x) (x<<1)#define rson(x) (x<<1|1)#define inf 0x7fffffff#define Mod 1000000007using namespace std;in 阅读全文
