View Compilation Error

0_0_35112684_14603.cpp: In function 'bool operator<(const node&, const node&)':
0_0_35112684_14603.cpp:22:21: error: expected ';' before 'a'
   return a.x == b.x a.y > b.y : a.x > b.x;
                     ^
0_0_35112684_14603.cpp:22:31: error: expected ';' before ':' token
   return a.x == b.x a.y > b.y : a.x > b.x;
                               ^