Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:10:12: error: redeclaration of ‘int x’ int x,n,i,x,y,a; ^ user.cpp:10:6: error: ‘int x’ previously declared here int x,n,i,x,y,a; ^ user.cpp:10:8: warning: unused variable ‘n’ [-Wunused-variable] int x,n,i,x,y,a; ^ user.cpp:10:10: warning: unused variable ‘i’ [-Wunused-variable] int x,n,i,x,y,a; ^ user.cpp:10:14: warning: unused variable ‘y’ [-Wunused-variable] int x,n,i,x,y,a; ^ user.cpp:10:16: warning: unused variable ‘a’ [-Wunused-variable] int x,n,i,x,y,a; ^