Compilare: main.cpp: In function 'void bfs_graf(int)': main.cpp:16:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<vizitat.size(); i++) ~^~~~~~~~~~~~~~~ main.cpp:29:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<graf[curN].size(); i++) ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:42:40: warning: unused variable 'j' [-Wunused-variable] int nr_varfuri,nr_arce,nod_sursa,i,j,x,y; ^