Compilare: main.cpp: In function 'int main()': main.cpp:39:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(int i=0; i<pattern.size(); ++i) | ~^~~~~~~~~~~~~~~ main.cpp:57:32: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for(int i=pattern.size(); i<text.size(); ++i) | ~^~~~~~~~~~~~