Compilare: user.cpp: In function ‘int main()’: user.cpp:9:11: warning: unused variable ‘i’ [-Wunused-variable] int n,i,x[50001],y[50001],t,aux,nr=1,max; ^ user.cpp:9:13: warning: unused variable ‘x’ [-Wunused-variable] int n,i,x[50001],y[50001],t,aux,nr=1,max; ^ user.cpp:9:22: warning: unused variable ‘y’ [-Wunused-variable] int n,i,x[50001],y[50001],t,aux,nr=1,max; ^ user.cpp:9:31: warning: unused variable ‘t’ [-Wunused-variable] int n,i,x[50001],y[50001],t,aux,nr=1,max; ^ user.cpp:9:33: warning: unused variable ‘aux’ [-Wunused-variable] int n,i,x[50001],y[50001],t,aux,nr=1,max; ^ user.cpp:9:37: warning: unused variable ‘nr’ [-Wunused-variable] int n,i,x[50001],y[50001],t,aux,nr=1,max; ^ user.cpp:9:42: warning: unused variable ‘max’ [-Wunused-variable] int n,i,x[50001],y[50001],t,aux,nr=1,max; ^ user.cpp:10:6: warning: ‘n’ is used uninitialized in this function [-Wuninitialized] g<<n-2; ^