View Compilation Error

0_0_36233026_8389.cpp: In function 'int main()':
0_0_36233026_8389.cpp:103:63: error: invalid initialization of reference of type 'Point&' from expression of type 'std::vector<Point>'
       int cnt=getCircleCircleIntersection(cir[0], cir[i], temp);
                                                               ^
0_0_36233026_8389.cpp:51:5: note: in passing argument 3 of 'int getCircleCircleIntersection(Circle, Circle, Point&, Point&)'
 int getCircleCircleIntersection(Circle C1, Circle C2, Point &a,Point &b) {
     ^