Compilare: user.cpp: In function ‘void dijkstra(int)’: user.cpp:36:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<ar[zz].size();++i) ^ user.cpp:37:80: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(cons.front()>ar[zz][i].consum || cons.front()==ar[zz][i].consum && v[ar[zz][i].dest]==1) ^ user.cpp:37:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(cons.front()>ar[zz][i].consum || cons.front()==ar[zz][i].consum && v[ar[zz][i].dest]==1) ^