Compilare: user.cpp:16:44: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] int dist[Kmax][Nmax],stops[Kmax],dp[Kmax][1<<Kmax+4],distk[Kmax][Kmax],indx[Nmax]; ^ user.cpp: In function ‘void dijkstra(int, int*)’: user.cpp:32:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<adj[v].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:92:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = 0; k < a[j].size(); ++k) ^