Compilare: main.cpp: In function 'bool Dijkstra(int, int, int)': main.cpp:33:13: warning: unused variable 'cost' [-Wunused-variable] int cost = Q.top().first; ^~~~ main.cpp:58:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if (d[D] == inf) ^~ main.cpp:61:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' int x = D; ^~~