Compilare: main.cpp: In function 'int edit(const std::string&, const std::string&)': main.cpp:12:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 12 | for (int i = 0; i < s.size(); ++i) | ~~^~~~~~~~~~ main.cpp:15:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 15 | for (int j = 0; j < t.size(); ++j) | ~~^~~~~~~~~~ main.cpp:19:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for (int i = 1; i < s.size(); ++i) { | ~~^~~~~~~~~~ main.cpp:20:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for (int j = 1; j < t.size(); ++j) { | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:43:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | for (int i = 0; i < s.size();) { | ~~^~~~~~~~~~ main.cpp:46:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | while (i < s.size() && isalpha(s[i])) { | ~~^~~~~~~~~~ main.cpp:73:23: 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] 73 | for (int i = 0; i < v.size(); ++i) { | ~~^~~~~~~~~~ main.cpp:76:35: 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] 76 | for (int j = i + 1; j < v.size(); ++j) { | ~~^~~~~~~~~~