Compilare: main.cpp: In function 'int main()': main.cpp:27:51: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 27 | while (s[cnt] == best[cnt] && cnt < s.size()) | ~~~~^~~~~~~~~~ main.cpp:31:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | if (cnt < s.size() && s[cnt] < best[cnt]) | ~~~~^~~~~~~~~~ main.cpp:53:47: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for (int k = 0; k < a[j].size(); k++) { | ~~^~~~~~~~~~~~~ main.cpp:55:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | if (cnt == a[i].size()) { | ~~~~^~~~~~~~~~~~~~ main.cpp:67:47: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | for (int k = 0; k < a[i].size(); k++) { | ~~^~~~~~~~~~~~~ main.cpp:69:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 69 | if (cnt == a[j].size()) { | ~~~~^~~~~~~~~~~~~~