Compilare: user.cpp:12:31: warning: integer overflow in expression [-Woverflow] vector <int> d(1005, ((1<<31)-1)), total(1005, 0); ^ user.cpp: In function ‘int main()’: user.cpp:21:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 1 ; i <= n ; ++ i ) ^ user.cpp:23:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 1 ; i <= m ; ++ i ) ^ user.cpp:33:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int i = 0 ; i < G[node].size() ; ++i ) ^ user.cpp:38:73: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( d[nod] > d[node] + length && total[node] + cost[nod] <= b ) ^