Compilare: user.cpp: In member function 'void Trie::addString(std::string, int)': user.cpp:37: warning: comparison between signed and unsigned integer expressions user.cpp: In member function 'void Trie::buildFail()': user.cpp:64: warning: array subscript has type 'char' user.cpp:65: warning: array subscript has type 'char' user.cpp:68: warning: array subscript has type 'char' user.cpp: In member function 'std::vector<int, std::allocator<int> > Trie::ahoCorasick(const std::string&, int)': user.cpp:81: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:135: warning: comparison between signed and unsigned integer expressions