View Compilation Error

0_0_17064323_15428.cpp: In function 'void pushdown(int)':
0_0_17064323_15428.cpp:19:19: error: expected unqualified-id at end of input
   t[t[root].ch[1]].
                   ^
0_0_17064323_15428.cpp:19:19: error: expected '}' at end of input
0_0_17064323_15428.cpp:19:19: error: expected '}' at end of input