View Compilation Error

0_0_33615792_15760.cpp: In function 'int main()':
0_0_33615792_15760.cpp:83:22: error: cannot convert 'node' to 'node*' for argument '1' to 'void freetrie(node*)'
         freetrie(root);//之前没释放内存超时了。。
                      ^