Compilare: main.cpp: In function 'void solve()': main.cpp:31:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for(int i=1;i<v.size();i++){ | ~^~~~~~~~~ main.cpp:56:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for(int i=1;i<v.size();i++){ | ~^~~~~~~~~