OJ Board

can anyone please tell where I have made the mistakes, it's getting me WA! :( Please help .thanks #include<iostream> #include<algorithm> #include<vector> #include<cstdio> #include<cmath> using namespace std; int main() { double ax,ay,bx,by,cx,cy; int n; while(cin>>n) { for(int i=0;i<n;i++) { cin>>ax...