Compilare: main.cpp: In function 'bool muzicalitate(std::__cxx11::string, std::__cxx11::string)': main.cpp:17:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= a.size() + 1; ++i) ~~^~~~~~~~~~~~~~~ main.cpp:19:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 1; j <= b.size() + 1; ++j) ~~^~~~~~~~~~~~~~~