Compilare: main.cpp: In function 'int suffix_arrays(std::__cxx11::string&, int)': main.cpp:33:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < current_suffixes.size(); ++ i) ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:49:12: warning: 'stop' may be used uninitialized in this function [-Wmaybe-uninitialized] return stop; ^~~~