Compilare: user.cpp: In function ‘void Rezolvare()’: user.cpp:229:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < izolat.size(); ++i) ^ user.cpp: In function ‘void Afisare()’: user.cpp:243:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < sol.size(); ++i) ^ user.cpp: In function ‘void Rezolvare()’: user.cpp:182:52: warning: ‘firstx’ may be used uninitialized in this function [-Wmaybe-uninitialized] sol.push_back(make_pair(repr[lasty], repr[firstx])); ^