Compilare: main.cpp: In function 'void bfs()': main.cpp:19:6: warning: unused variable 'nod' [-Wunused-variable] int nod, vecin; ^~~ main.cpp: In function 'int main()': main.cpp:39:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t i = 0; i < m; i++) ~~^~~ main.cpp:48:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t i = 1; i <= n; i++) ~~^~~~