Borderou de evaluare (job #711601)

Compilare: main.cpp: In function 'std::string attempt_left(std::string, std::string)': main.cpp:29:24: warning: comparison of integer expressions of different signedness: 'long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 29 | for (long i = 0; i < x.size(); i++) | ~~^~~~~~~~~~ main.cpp: In function 'std::string attempt_add(std::string, char)': main.cpp:59:25: warning: comparison of integer expressions of different signedness: 'long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 59 | for (long i = 0; i < x.size(); i++) | ~~^~~~~~~~~~