Compilare: user.cpp: In function ‘void citire()’: user.cpp:24:7: warning: unused variable ‘x’ [-Wunused-variable] int i,x,y,d; ^ user.cpp:24:9: warning: unused variable ‘y’ [-Wunused-variable] int i,x,y,d; ^ user.cpp:24:11: warning: unused variable ‘d’ [-Wunused-variable] int i,x,y,d; ^