Compilare: main.cpp: In function 'int main()': main.cpp:78:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 78 | for(int i=a.size(); i<b.size(); i++){ | ~^~~~~~~~~ main.cpp:71:9: warning: unused variable 'cnt' [-Wunused-variable] 71 | int cnt = 0; | ^~~