View Compilation Error

0_0_6501491_6272.cpp: In function `double dist2(Point, Point)':
0_0_6501491_6272.cpp:22: error: expected `)' at end of input
0_0_6501491_6272.cpp:22: error: no match for 'operator*' in '(a.Point::y - b.Point::y) * a'
0_0_6501491_6272.cpp:22: error: expected `;' at end of input
0_0_6501491_6272.cpp:22: error: expected `}' at end of input