Compilare: main.cpp: In function 'bool check(int)': main.cpp:19:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for (int i = 0; i < cerinta.size(); i++) | ~~^~~~~~~~~~~~~~~~ main.cpp:23:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | while( ind < lista[cerinta[i]-'a'].size() && lista[cerinta[i] - 'a'][ind] <= poz){ | ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:26:54: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 26 | if (lista[cerinta[i] - 'a'].size() - ind + 1 < x){ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~ main.cpp: In function 'int main()': main.cpp:48:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | for (int i = 0; i < sir.size(); i ++){ | ~~^~~~~~~~~~~~