View Compilation Error

0_0_33695631_29681.cpp: In function 'void solve()':
0_0_33695631_29681.cpp:283:15: error: no match for 'operator[]' (operand types are 'std::vector<Point> [3]' and 'Point')
  for(Point x:p[x]) for(Point y:p[y]){
               ^
0_0_33695631_29681.cpp:283:33: error: no match for 'operator[]' (operand types are 'std::vector<Point> [3]' and 'Point')
  for(Point x:p[x]) for(Point y:p[y]){
                                 ^