Compilare: main.cpp: In function 'int KMP(std::string, std::string)': main.cpp:39:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for (int i = 1; i < s.size(); i++) | ~~^~~~~~~~~~ main.cpp: In function 'bool caut_subsir(std::string, std::string)': main.cpp:57:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for (int i = 1; i < s.size(); i++) | ~~^~~~~~~~~~ main.cpp:65:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 65 | if (len[i] == b.size()) | ~~~~~~~^~~~~~~~~~~ main.cpp: In function 'void ciclu_hamiltonian()': main.cpp:157:48: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 157 | for (int j = cost[sol[i+1]][sol[i]]; j < adn[sol[i]].size(); j++) | ~~^~~~~~~~~~~~~~~~~~~~