摘要：
For a group of people, there is an idea that everyone is equals to or less than 6 steps away from any other person in the group, by way of introductio 阅读全文
摘要：
1 /* 2 求多边形与圆相交的面积 3 */ 4 5 #include <iostream> 6 #include <cstdio> 7 #include <cmath> 8 #define max(x,y) ((x)>(y)?(x):(y)) 9 #define min(x,y) ((x)<(y 阅读全文