2012年2月2日
摘要:
#include<iostream>#include<stdio.h>#include<cmath>#include<algorithm>#include<fstream>using namespace std;#define eps 1e-6struct node{ int x,y;}Queue[55];double Dis(node a,node b){ return sqrt((a.x-b.x)*(a.x-b.x)+(a.y-b.y)*(a.y-b.y));}double Mul(node a,node b,node c){ r 阅读全文