Compilare: main.cpp: In function 'bool s2_in_s1_at_poz(std::string, std::string, int)': main.cpp:21:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for (int i = 0 ; i < s2.size() ; ++i) { | ~~^~~~~~~~~~~ main.cpp: In function 'bool expresie(std::string&, int&)': main.cpp:29:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | while (p < s.size() && s2_in_s1_at_poz("OR", s, p)) { | ~~^~~~~~~~~~ main.cpp: In function 'bool termen(std::string&, int&)': main.cpp:39:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | while (p < s.size() && s2_in_s1_at_poz("AND", s, p)) { | ~~^~~~~~~~~~