Compilare: main.cpp: In function 'void bf(int, int)': main.cpp:29:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp:37:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<GT[nod].size();i++){ ~^~~~~~~~~~~~~~~ main.cpp: In function 'void bf_final(int, int, int)': main.cpp:57:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp:65:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<GT[nod].size();i++){ ~^~~~~~~~~~~~~~~