View Compilation Error

0_0_28159814_31469.cpp: In function 'int main()':
0_0_28159814_31469.cpp:36:88: error: expected ')' before ']' token
    while (head+1<tail&&getup(i,que[tail-1])*getdown(que[tail-1],que[tail-2])<=getdown(i],que[tail-1])*getup(que[tail-1],que[tail-2])) tail--;
                                                                                        ^
0_0_28159814_31469.cpp:36:88: error: expected ')' before ']' token
0_0_28159814_31469.cpp:36:88: error: expected primary-expression before ']' token