/in/foo.cc: In function 'int main()':
/in/foo.cc:6:19: warning: overflow in implicit constant conversion [-Woverflow]
  int a[5]={},minn=1e18,maxn=0;
                   ^~~~
/in/foo.cc:7:17: error: 'n' was not declared in this scope
  for(int i=1;i<=n;i++) 
                 ^
/in/foo.cc:11:17: error: 'n' was not declared in this scope
  for(int i=1;i<=n;i++) 
                 ^