Compilare: user.cpp: In function ‘int main()’: user.cpp:10:13: warning: unused variable ‘j’ [-Wunused-variable] int i,n,j,nr=0,max=-1,x=0,s1=0; ^ user.cpp:10:20: warning: unused variable ‘max’ [-Wunused-variable] int i,n,j,nr=0,max=-1,x=0,s1=0; ^ user.cpp:10:27: warning: variable ‘x’ set but not used [-Wunused-but-set-variable] int i,n,j,nr=0,max=-1,x=0,s1=0; ^ user.cpp:10:31: warning: unused variable ‘s1’ [-Wunused-variable] int i,n,j,nr=0,max=-1,x=0,s1=0; ^