Compilare: main.cpp: In function 'bool ok(long long int, std::vector<std::__cxx11::basic_string<char> >&)': main.cpp:31:37: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for (int wordIndex = 0; wordIndex < words.size(); wordIndex++) { | ~~~~~~~~~~^~~~~~~~~~~~~~ main.cpp:32:33: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare] 32 | if (words[wordIndex].size() < length) return false; | ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~ main.cpp:47:14: 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] 47 | for (; i < words[wordIndex].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~