Compilare: user.cpp: In function ‘std::vector<std::array<int, 17u> > mk_ord(const string&)’: user.cpp:11:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < str.size(); ++i){ ^ user.cpp: In lambda function: user.cpp:18:62: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return make_pair(rez[p][l-1], (p+step < str.size() ? rez[p+step][l-1] : 0)); }; ^ user.cpp: In function ‘int lcp(int, int, const std::vector<std::array<int, 17u> >&, int, int)’: user.cpp:32:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(x >= ord.size() || y >= ord.size()) return rez; ^ user.cpp:32:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(x >= ord.size() || y >= ord.size()) return rez; ^