Compilare: user.c: In function ‘main’: user.c:19:50: warning: unused variable ‘x4’ [-Wunused-variable] int sol=0,ok,x2=getfact(r,2),x3=getfact(r,3),x4=getfact(r,4),x5=getfact(r,5); ^ user.c:18:21: warning: unused variable ‘j’ [-Wunused-variable] int cont=0,nr=2,j,i; ^ user.c:18:16: warning: unused variable ‘nr’ [-Wunused-variable] int cont=0,nr=2,j,i; ^ user.c:18:9: warning: unused variable ‘cont’ [-Wunused-variable] int cont=0,nr=2,j,i; ^ user.c:17:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&r,&d); ^ user.c:42:12: warning: ‘ok’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout,"%d",sol*2+ok); ^