Compilare: main.cpp: In function 'void print(std::vector<std::__cxx11::basic_string<char> >&, int)': main.cpp:21:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for (int i = 0; i < line.size(); i++) { | ~~^~~~~~~~~~~~~ main.cpp:23:9: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | if (i < line.size() - 1) { | ~~^~~~~~~~~~~~~~~~~