Compilare: main.cpp: In function 'int main()': main.cpp:53:23: 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 i = 0; i < s.length(); i++) | ~~^~~~~~~~~~~~ main.cpp:59:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | if (j == t.length()) | ~~^~~~~~~~~~~~~