Compilare: user.cpp: In function ‘int main()’: user.cpp:11:15: warning: unused variable ‘in’ [-Wunused-variable] int i,n,k,in,a,x,y,max1,min1,j,x1,y1; ^ user.cpp:23:17: warning: ‘y1’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<x1<<" "<<y1<<" "<<max1; ^ user.cpp:23:8: warning: ‘x1’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<x1<<" "<<y1<<" "<<max1; ^