Compilare: main.cpp: In function 'void afisare()': main.cpp:45:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for(j=0;j<A[i].size();j++) fout<<A[i][j]<<' '; | ~^~~~~~~~~~~~ main.cpp: In function 'void bfs(int)': main.cpp:58:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for(i=0;i<A[x].size();i++) | ~^~~~~~~~~~~~