Compilare: main.cpp: In function 'int32_t main()': main.cpp:31:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | while (ind < text.size()) { | ~~~~^~~~~~~~~~~~~ main.cpp:33:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | while (ind < text.size() and text[ind] >= 'a' and text[ind] <= 'z') { | ~~~~^~~~~~~~~~~~~ main.cpp:44:23: 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] 44 | for (int i = 1; i < words.size(); ++i) { | ~~^~~~~~~~~~~~~~ main.cpp:53:23: 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] 53 | for (int i = 0; i < words.size(); ++i) { | ~~^~~~~~~~~~~~~~ main.cpp:55:31: 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] 55 | for (int j = i + 1; j < words.size() and !found; ++j) { | ~~^~~~~~~~~~~~~~