Compilare: main.cpp: In function 'void addWord(Node*, std::__cxx11::string&, int)': main.cpp:26:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < word.size(); i++) ~~^~~~~~~~~~~~~ main.cpp: In function 'void solve(std::__cxx11::string&, std::vector<std::__cxx11::basic_string<char> >&)': main.cpp:70:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < dictionary.size(); i++) ~~^~~~~~~~~~~~~~~~~~~ main.cpp:73:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < dictionary.size(); i++) ~~^~~~~~~~~~~~~~~~~~~ main.cpp:77:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < text.size(); i++) ~~^~~~~~~~~~~~~ main.cpp:102:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < dictionary.size(); i++) ~~^~~~~~~~~~~~~~~~~~~