Compilare: main.cpp: In function 'int main()': main.cpp:18:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 18 | for (int i = 1; i < s.size(); i++) { | ~~^~~~~~~~~~ main.cpp:31:38: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for (int i = a.size() + 1; i < s.size(); i++) { | ~~^~~~~~~~~~ main.cpp:32:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | if (kmp[i] == a.size()) { | ~~~~~~~^~~~~~~~~~~