Compilare: user.cpp: In function ‘int main()’: user.cpp:31:16: warning: unused variable ‘j’ [-Wunused-variable] long u,v,i,j,k,rr=0; nod* a,*b; float minn,total=0; ^ user.cpp:31:34: warning: unused variable ‘b’ [-Wunused-variable] long u,v,i,j,k,rr=0; nod* a,*b; float minn,total=0; ^ user.cpp:47:17: warning: ‘v’ may be used uninitialized in this function [-Wmaybe-uninitialized] viz[v]=1; ^ user.cpp:49:21: warning: ‘u’ may be used uninitialized in this function [-Wmaybe-uninitialized] sol[1][rr]=u; ^