摘要:
double cross(Point a,Point b){ return a.x*b.y-a.y*b.x;}double mul(Point p0,Point p1,Point p2){ return cross(p1-p0,p2-p0);}double dis(Point a){ ... 阅读全文
摘要:
规定sum[i] 为i里面含1的个数 ,求从1-N sum[i]的乘积。数为64位内的,也就是sum[i] 2 #include 3 #include 4 #include 5 #include 6 #include 7 #include 8 #include 9 #include10 using ... 阅读全文