Compilare: main.cpp: In function 'void bfs(int, int*)': main.cpp:15:31: warning: 'memset' used with constant zero length parameter; this could be due to transposed parameters [-Wmemset-transposed-args] memset(d,(n+1)*sizeof(int),0); ^ main.cpp:14:9: warning: unused variable 'q' [-Wunused-variable] nod p,q; ^ main.cpp: In function 'int main()': main.cpp:81:4: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if (at[i]==1) ^~ main.cpp:83:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' return 0; ^~~~~~