Compilare: user.cpp: In function ‘int main()’: user.cpp:9:9: warning: unused variable ‘n’ [-Wunused-variable] int n,x,y,par1=0,par2=0,s=0; ^ user.cpp:9:15: warning: unused variable ‘par1’ [-Wunused-variable] int n,x,y,par1=0,par2=0,s=0; ^ user.cpp:9:22: warning: unused variable ‘par2’ [-Wunused-variable] int n,x,y,par1=0,par2=0,s=0; ^ user.cpp:9:29: warning: unused variable ‘s’ [-Wunused-variable] int n,x,y,par1=0,par2=0,s=0; ^