Compilare: user.c: In function ‘main’: user.c:10:30: warning: unused variable ‘put’ [-Wunused-variable] int i,w,pz,pz1,pz2,afs=0,put; ^ user.c:10:24: warning: variable ‘afs’ set but not used [-Wunused-but-set-variable] int i,w,pz,pz1,pz2,afs=0,put; ^ user.c:10:20: warning: unused variable ‘pz2’ [-Wunused-variable] int i,w,pz,pz1,pz2,afs=0,put; ^ user.c:10:16: warning: unused variable ‘pz1’ [-Wunused-variable] int i,w,pz,pz1,pz2,afs=0,put; ^