Compilare: user.cpp: In function 'void TrieInsert(char*, int)': user.cpp:36: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void TrieSearch(char*)': user.cpp:58: warning: comparison between signed and unsigned integer expressions user.cpp:66: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:72: warning: unused variable 'j' /tmp/ccsgvlr9.o: In function `main': user.cpp:(.text+0x3cb): warning: the `gets' function is dangerous and should not be used.