Compilare: main.cpp: In function 'void dijkstra(int)': main.cpp:46:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if ( friendly[nod] ) ^~ main.cpp:49:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' q.pop_front(); ^ main.cpp:50:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < ad[nod].size(); ++i ) ~~^~~~~~~~~~~~~~~~