Borderou de evaluare (job #657252)

Compilare: main.cpp: In function 'bool merge(std::string, std::string)': main.cpp:13:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 13 | for (int i = 0; i < x.size(); i++) | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:42:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 42 | if (l != x.size()) | ~~^~~~~~~~~~~