摘要：题意： $n$个点，$q$个询问，每次问包含询问点的直角三角形有几个 思路： 代码： cpp include using namespace std; const int maxn = 8000 + 10; typedef long long ll; const ll mod = 998244353 阅读全文

摘要：题意： "传送门" 给你$n(n include include include include include include include include include include include include using namespace std; typedef long lon 阅读全文