Compilare: main.cpp: In constructor 'Hasher::Hasher(const string&)': main.cpp:45:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < hh.size(); i++) { ~~^~~~~~~~~~~ main.cpp: In function 'int solve(const std::vector<std::__cxx11::basic_string<char> >&)': main.cpp:100:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = 0; k < sortat.size() - 1; ++k) { ~~^~~~~~~~~~~~~~~~~~~ main.cpp:104:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = 0; k < sortat.size() - 1; k++) { ~~^~~~~~~~~~~~~~~~~~~ main.cpp:105:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] int vv = (k == sortat.size() - 1 ? n : lcp[k]); ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:121:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (poz + 1 <sortat.size() - 1 && lcp[poz + 1] >= jq && ds.get (poz) != ds.get (poz + 1) ) { ~~~~~~~~^~~~~~~~~~~~~~~~~~