Compilare: main.cpp: In function 'void adaug(std::string)': main.cpp:18:22: 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 < x.size(); ++ i) | ~~^~~~~~~~~~ main.cpp:21:26: 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 j = i; j < x.size() && adaos.length() != 60; ++ j) | ~~^~~~~~~~~~