Compilare: main.cpp: In function 'int main()': main.cpp:25:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | while(poz<aux[0].size() && poz<aux[aux.size()-1].size() && aux[0][poz]==aux[aux.size()-1][poz]) poz++; | ~~~^~~~~~~~~~~~~~ main.cpp:25:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | while(poz<aux[0].size() && poz<aux[aux.size()-1].size() && aux[0][poz]==aux[aux.size()-1][poz]) poz++; | ~~~^~~~~~~~~~~~~~~~~~~~~~~~~