Compilare: main.cpp: In constructor 'HashedString::HashedString(std::string)': main.cpp:16:30: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | for(int i=1;i<=S.size()+3;++i){ | ~^~~~~~~~~~~~ main.cpp:20:30: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(int i=1;i<=s.size()-1;++i){ | ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:52:16: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | for(int i=0;i<ap.size() && i< 1000; ++i){ | ~^~~~~~~~~~