Compilare: user.cpp: In function ‘int get_min(VEC_OF_I&, VEC_OF_I&)’: user.cpp:27:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(((i2+1)<Q.size() && dist[Q[i]]>dist[Q[i2+1]])||((i2+2)<Q.size() && dist[Q[i]]>dist[Q[i2+2]])) ^ user.cpp:27:70: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(((i2+1)<Q.size() && dist[Q[i]]>dist[Q[i2+1]])||((i2+2)<Q.size() && dist[Q[i]]>dist[Q[i2+2]])) ^ user.cpp:29:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(((i2+2)<Q.size())&& (dist[Q[i2+1]]<dist[Q[i2+2]])) ^