Compilare: main.cpp: In member function 'void Hash::make(std::string, long long int, long long int)': main.cpp:37:23: 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] 37 | for (int i=0;i<s.size();i++) | ~^~~~~~~~~ main.cpp: In function 'int32_t main()': main.cpp:69:31: 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] 69 | for (int i=(int)s.size();i<s1.size();i++) | ~^~~~~~~~~~ main.cpp:79:19: 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] 79 | for (int i=0;i<vec.size() && i<1000;i++) | ~^~~~~~~~~~~