Borderou de evaluare (job #671005)

Compilare: main.cpp: In function 'int main()': main.cpp:16:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 16 | while (k!=a.size() && b.size()) | ~^~~~~~~~~~ main.cpp:23:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'unsigned int'} [-Wsign-compare] 23 | while (k!=a.size()) | ~^~~~~~~~~~