Compilare: main.cpp: In function 'bool verificare(std::string)': main.cpp:13:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | for(int i = 0; i < sir.size(); i++){ | ~~^~~~~~~~~~~~ main.cpp: In function 'bool verificare2(std::string)': main.cpp:18:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 18 | for(int i = 0; i < sir.size(); i++){ | ~~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:29:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(int i = 0; i < secv.size(); i++){ | ~~^~~~~~~~~~~~~ main.cpp:36:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(int i = 0; i < secv.size(); i++){ | ~~^~~~~~~~~~~~~