#include<iostream> #include<vector> #include<math.h> #include<algorithm> #include<unordered_map> using namespace std; double Dist(int x1,int y1,int x2,int y2){ return sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)); } int main(){ int T; cin>>T; for(int i=0;i...