View Compilation Error

0_0_19888821_2938.cpp: In function 'int ask(int)':
0_0_19888821_2938.cpp:18:41: error: expected ']' at end of input
     for(int i=loc;i>=1;i-=low(i))if(via[i
                                         ^
0_0_19888821_2938.cpp:18:41: error: expected ')' at end of input
0_0_19888821_2938.cpp:18:41: error: expected statement at end of input
0_0_19888821_2938.cpp:18:41: error: expected '}' at end of input