Compilare: main.cpp: In function 'void cerinta_1(std::string)': main.cpp:34:29: 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] 34 | for(long long j=0; j<a[i].size(); j++) | ~^~~~~~~~~~~~ main.cpp: In function 'void cerinta_2()': main.cpp:57:29: 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] 57 | for(long long j=0; j<a[i].size(); j++) | ~^~~~~~~~~~~~