Compilare: main.cpp: In function 'int main()': main.cpp:43:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i<adiacenta[vf_curent].size(); i++) ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:30:13: warning: unused variable 'nod' [-Wunused-variable] int nod,cost; ^~~ main.cpp:30:17: warning: unused variable 'cost' [-Wunused-variable] int nod,cost; ^~~~