Compilare: main.cpp: In function 'int kcomp(std::string, std::string)': main.cpp:21:19: 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 i=0; i<=A.size(); i++) | ~^~~~~~~~~~ main.cpp:23:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | for(int i=0; i<=B.size(); i++) | ~^~~~~~~~~~