Compilare: main.cpp: In function 'int hashf(std::__cxx11::string)': main.cpp:21:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i<a.size(); i++) ~^~~~~~~~~ main.cpp: In function 'void solve()': main.cpp:55:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i<=sir.size()-wordSize; i++) ~^~~~~~~~~~~~~~~~~~~~~ main.cpp:60:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j<dictionary.size(); j++) ~^~~~~~~~~~~~~~~~~~ main.cpp:71:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<sir.size()-wordSize) ~^~~~~~~~~~~~~~~~~~~~