View Compilation Error

0_0_20873451_31696.cpp:18:23: error: expected ']' before ')' token
 }queue[31*31*(1<<10)+1)];
                       ^
0_0_20873451_31696.cpp: In function 'void push(int, int, int, int)':
0_0_20873451_31696.cpp:22:2: error: 'queue' was not declared in this scope
  queue[rear].x=x;
  ^
0_0_20873451_31696.cpp: In function 'int main()':
0_0_20873451_31696.cpp:79:16: error: 'queue' was not declared in this scope
    Mark=update(queue[front].x,queue[front].y,queue[front].s,queue[front].t);
                ^