Compilare: user.cpp: In function ‘void bellmanFord()’: user.cpp:25:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<forT.size(); i++) ^ user.cpp:35:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<G[p].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:82:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<forT.size(); i++) ^