Compilare: user.cpp: In function ‘void bfs()’: user.cpp:22:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i(0); i<myvertex[nod].size() ; i++) { ~^~~~~~~~~~~~~~~~~~~~~ user.cpp: In function ‘int main(int, const char**)’: user.cpp:45:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for(int i(1);i<=n;i++) ^~~ user.cpp:47:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ dist[x]=0; ^~~~