Compilare: main.cpp: In function 'void solve_test()': main.cpp:23:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | for(int i=0;i<s.size();i++) | ~^~~~~~~~~ main.cpp:33:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | for(int i=0;i<s.size();i++) | ~^~~~~~~~~ main.cpp:42:15: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | g<<rez[poz==s.size()]<<'\n'; | ~~~^~~~~~~~~~ main.cpp:43:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | for(int i=0;i<s.size();i++) | ~^~~~~~~~~