View Compilation Error

0_0_18791359_25906.cpp: In function 'int solve()':
0_0_18791359_25906.cpp:42:49: error: expected primary-expression at end of input
     for (int L = 1; !que1.empty() && !que2.empty(
                                                 ^
0_0_18791359_25906.cpp:42:49: error: expected ';' at end of input
0_0_18791359_25906.cpp:42:49: error: expected primary-expression at end of input
0_0_18791359_25906.cpp:42:49: error: expected ')' at end of input
0_0_18791359_25906.cpp:42:49: error: expected statement at end of input
0_0_18791359_25906.cpp:42:49: error: expected '}' at end of input