Compilare: main.cpp: In function 'int main()': main.cpp:25:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for(int i = 1; i <= patern.size(); i++) { | ~~^~~~~~~~~~~~~~~~ main.cpp:26:42: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for(int j = 1; j <= s.size(); j++) { | ~~^~~~~~~~~~~