Compilare: main.cpp: In function 'void kmp(std::__cxx11::string)': main.cpp:12:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<s.size();i++) ~^~~~~~~~~ main.cpp:25:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=a.size()+1;i<s.size();i++) ~^~~~~~~~~ main.cpp:27:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pi[i]==a.size()) ~~~~~^~~~~~~~~~ main.cpp:33:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<rez.size() && i<1000;i++) ~^~~~~~~~~~~