View Compilation Error

0_0_36386190_17421.cpp:3:11: error: size of array 'id' has non-integral type 'double'
 int id[1e9];
           ^
0_0_36386190_17421.cpp: In function 'void rotate(node*&, int)':
0_0_36386190_17421.cpp:20:28: error: expected '}' at end of input
 void rotate(node *&o,int d){      //d=0
                            ^