Compilare: user.cpp: In function ‘int main()’: user.cpp:44:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (where[i] < pariuri[i].size()) ^ user.cpp:50:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (where[i] < pariuri[i].size() && minim == pariuri[i][where[i]].first) ^ user.cpp:54:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (where[i] == pariuri[i].size()) ++finished; ^ user.cpp:61:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < res.size(); ++i) cout << i+1 << " " << res[i] << " "; ^