View Compilation Error

0_0_36864449_13181.cpp: In function 'int query(int, int, int, int, int, int)':
0_0_36864449_13181.cpp:55:83: error: expected '}' at end of input
     if(L <= mid && sum[id][rt << 1]) return  query(id , L , R , l , mid , rt << 1);        //
                                                                                   ^