Compilare: main.cpp: In function 'int bfs()': main.cpp:26:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<L[nod].size(); i++){ ~^~~~~~~~~~~~~~ main.cpp:19:9: warning: variable 'gasit' set but not used [-Wunused-but-set-variable] int gasit = 0, nod, vecin; ^~~~~ main.cpp:37:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:48:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<L[n].size(); i++){ ~^~~~~~~~~~~~