Compilare: main.cpp: In function 'int bfs()': main.cpp:25:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for (i = 0; i < listavecini[nod].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:67:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | for (i = 0; i < listavecini[destinatie].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~