Compilare: user.cpp: In function ‘bool BFS()’: user.cpp:35:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < vecini[nod_curent].size(); ++i) ^ user.cpp: In function ‘void ek()’: user.cpp:59:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int tata_dest = 0; tata_dest < vecini[noduri].size(); ++tata_dest) ^