View Compilation Error

0_0_23924053_4979.cpp: In function 'void change(int, int, int, int)':
0_0_23924053_4979.cpp:50:34: error: expected '}' at end of input
         change(now*2+1,mid+1,r,k);
                                  ^
0_0_23924053_4979.cpp:50:34: error: expected '}' at end of input