Compilare: user.cpp: In function ‘std::vector<int> RabinKarp(std::string, std::string)’: user.cpp:28:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < P.size(); i++) ^ user.cpp:33:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < P.size() - 1; i++) ^ user.cpp:43:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = P.size(); i < T.size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:64:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i< occ.size(); i++) ^