摘要:
#include <iostream>#include <cmath>#include <cstdio>using namespace std;struct line{ double x1,y1; double x2,y2; bool operator < (const line &a) const { return x1 < a.x1; }}arr[110];bool cross(line a,line b){ double fa=((a.x2-a.x1)*(b.y1-a.y1)-(a.y2-a.y1)*(b.x1-a.x1))* .. 阅读全文
posted @ 2012-07-30 11:22
qijinbiao1
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