Compilare: main.cpp: In function 'bool Valid(std::__cxx11::string, std::__cxx11::string)': main.cpp:33:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= b.length(); ++i) ~~^~~~~~~~~~~~~ main.cpp:45:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (p == a.length() + 1) ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:75:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (lungime_maxima < sir.length()) ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~ main.cpp:89:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (v[i - 1].length() == lungime_maxima) ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~ main.cpp:163:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= siruri_interesante.size(); ++i) ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~