Compilare: main.cpp: In function 'int main()': main.cpp:25:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | while (ind < s.size()) { | ~~~~^~~~~~~~~~ main.cpp:28:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | while (ind < s.size() && isdigit(s[ind])) { | ~~~~^~~~~~~~~~ main.cpp:37:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | while (ind < s.size() && isalpha(s[ind])) { | ~~~~^~~~~~~~~~ main.cpp:61:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::__cxx11::basic_string<char>, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for (int i = v.size() - t; i < v.size(); i++) | ~~^~~~~~~~~~ main.cpp:92:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::__cxx11::basic_string<char>, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 92 | for (int i = v.size() - t; i < v.size(); i++) | ~~^~~~~~~~~~