Compilare: main.cpp: In function 'int main()': main.cpp:67:40: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 67 | if (v[ind[1]].length() == cnt + 1) | ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ main.cpp:75:44: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 75 | if (v[ind[i]].length() == cnt + 1) | ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~