Compilare: main.cpp: In function 'void BFS()': main.cpp:26:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<L[nod].size();j++) ~^~~~~~~~~~~~~~ main.cpp:26:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(j=0;j<L[nod].size();j++) ^~~ main.cpp:33:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' c.pop(); ^