Compilare: main.cpp: In function 'int* prefixFunction(const string&)': main.cpp:19:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for (int i = 1; i < s.size(); i++) | ~~^~~~~~~~~~ main.cpp: In function 'std::vector<int> KMP(const string&, const string&)': main.cpp:41:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for (int i = 1; i < text.size(); i++) | ~~^~~~~~~~~~~~~ main.cpp:49:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | if (k == pattern.size()) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:68:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | for (int i = 0; i < ans.size() && i < 1000; i++) | ~~^~~~~~~~~~~~