View Compilation Error

0_0_33615718_15189.cpp:52:15: error: variable or field 'freetrie' declared void
 void freetrie(trie *p)
               ^
0_0_33615718_15189.cpp:52:15: error: 'trie' was not declared in this scope
0_0_33615718_15189.cpp:52:21: error: 'p' was not declared in this scope
 void freetrie(trie *p)
                     ^