Compilare: main.cpp: In member function 'void KMP::build()': main.cpp:125:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < s.size(); i++) { ~~^~~~~~~~~~ main.cpp: In member function 'std::vector<int> KMP::match(const string&)': main.cpp:141:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0, p = 0; i < target.size(); i++) { ~~^~~~~~~~~~~~~~~ main.cpp:154:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (p == s.size()) { ~~^~~~~~~~~~~