Compilare: main.cpp: In function 'void bellman(int)': main.cpp:20:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v[nod].size(); i++) ~^~~~~~~~~~~~~~ main.cpp:20:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=0; i<v[nod].size(); i++) ^~~ main.cpp:22:7: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' if(rez[vec]>rez[nod]+cost) ^~