nulle

摘要： #include <stdio.h>#include <string.h>#include <stdlib.h>#include <algorithm>#include <math.h>using namespace std;#define eps 1e-8#define zero(x) (((x)>0?(x):-(x))<eps)struct point{ double x,y;}P;struct line{ point a,b;}a[1510],L1,L2;double xmult(point p1, point p2 阅读全文