Compilare: main.cpp: In function 'void Construire_Z(std::__cxx11::string, int*)': main.cpp:29:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < sir.size(); ++ i ) { ~~^~~~~~~~~~~~ main.cpp:33:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i + a[ i ] <= sir.size() && sir[ a[ i ] ] == sir[ i + a[ i ] ]) { ~~~~~~~~~~~^~~~~~~~~~~~~ main.cpp: In function 'void Solve()': main.cpp:44:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = N + 1; i < in.size() - N + 1; ++ i ) { ~~^~~~~~~~~~~~~~~~~~~