View Compilation Error

0_0_35818352_4903.cpp: In function 'int bfs(pos)':
0_0_35818352_4903.cpp:51:12: error: expected primary-expression before '.' token
         if(.hang+x[i]>=0&&ls.hang+x[i]<hang&&
            ^
0_0_35818352_4903.cpp:52:49: error: expected primary-expression before ')' token
                ls.lie+y[i]>=0&&ls.lie+y[i]<lie&&)
                                                 ^