Compilare: main.cpp: In function 'void bfs(int, int*)': main.cpp:24:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<mu[nod].size();i++) ~^~~~~~~~~~~~~~~ main.cpp:24:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(int i=0;i<mu[nod].size();i++) ^~~ main.cpp:31:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' q.pop(); ^