Compilare: main.cpp: In function 'int main()': main.cpp:47:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | while (i < s.length()) { | ~~^~~~~~~~~~~~ main.cpp:53:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | if (j == p.length()) { | ~~^~~~~~~~~~~~~ main.cpp:60:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | } else if (i < s.length() && p[j] != s[i]) { | ~~^~~~~~~~~~~~