摘要：
极坐标排序+叉积判断夹角View Code #include <iostream>#include <cstdio>#include <cstdlib>#include <cstring>#include <cmath>#include <algorithm>using namespace std;#define maxn 200#define eps 1.0e-8struct Point{ int x, y;}s, point[maxn];double r;int n;bool operator < (const 阅读全文
posted @ 2012-12-31 14:32
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