Compilare: user.cpp: In function ‘int get_min(VEC_OF_I&, VEC_OF_I&)’: user.cpp:26:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while((((i>>1)+1)<Q.size() && dist[Q[i]]>dist[Q[(i>>1)+1]])||(((i>>1)+2)<Q.size() && dist[Q[i]]>dist[Q[(i>>1)+2]])) ^ user.cpp:26:82: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while((((i>>1)+1)<Q.size() && dist[Q[i]]>dist[Q[(i>>1)+1]])||(((i>>1)+2)<Q.size() && dist[Q[i]]>dist[Q[(i>>1)+2]])) ^