Compilare: main.cpp: In function 'std::vector<int> kmp(const string&, const string&)': main.cpp:15:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i{2}, k{}; i < pattern.size();++i) { ~~^~~~~~~~~~~~~~~~ main.cpp:26:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i{1}, k{};i < s.size();++i) { ~~^~~~~~~~~~ main.cpp:34:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(k == pattern.size() - 1) { ~~^~~~~~~~~~~~~~~~~~~~~