Compilare: user.cpp: In function 'void TrieInsert(char*, int)': user.cpp:34: warning: array subscript has type 'char' user.cpp:35: warning: array subscript has type 'char' user.cpp:39: warning: array subscript has type 'char' user.cpp:30: warning: unused variable 'i' user.cpp: In function 'void search(char*)': user.cpp:52: warning: array subscript has type 'char' user.cpp:54: warning: array subscript has type 'char' user.cpp:55: warning: comparison between signed and unsigned integer expressions user.cpp:50: warning: unused variable 'now' user.cpp: In function 'int main()': user.cpp:61: warning: unused variable 'j' /tmp/ccsojjOE.o: In function `main': user.cpp:(.text+0x1eb): warning: the `gets' function is dangerous and should not be used.