View Compilation Error

0_0_16680903_23943.cpp: In function 'void Intersect_circle(point, double, point, point, point&, point&)':
0_0_16680903_23943.cpp:101:12: error: 't' was not declared in this scope
   p1.y=V.y*t
            ^
0_0_16680903_23943.cpp:101:12: error: expected '}' at end of input
0_0_16680903_23943.cpp:101:12: error: expected '}' at end of input