Compilare: user.cpp: In function ‘void cer2()’: user.cpp:105:28: warning: unused variable ‘nodi’ [-Wunused-variable] int c1,c2,x,y,r,gg,z,w,nodi,nod,vecin,nodsf; ^ user.cpp:105:33: warning: unused variable ‘nod’ [-Wunused-variable] int c1,c2,x,y,r,gg,z,w,nodi,nod,vecin,nodsf; ^ user.cpp:105:37: warning: unused variable ‘vecin’ [-Wunused-variable] int c1,c2,x,y,r,gg,z,w,nodi,nod,vecin,nodsf; ^ user.cpp:105:43: warning: unused variable ‘nodsf’ [-Wunused-variable] int c1,c2,x,y,r,gg,z,w,nodi,nod,vecin,nodsf; ^ user.cpp:149:7: warning: unused variable ‘d’ [-Wunused-variable] int d[40005]; ^ user.cpp: In function ‘void cer1()’: user.cpp:70:32: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(ok)g<<c1<<' '<<c2<<' '<<p<<'\n'; ^