Nice challenge.
This fails for larger values of n. For n = 100, for instance, it returns 463 rather than 447.
Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink.
Hide child comments as well
Confirm
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
Nice challenge.
This fails for larger values of n. For n = 100, for instance, it returns 463 rather than 447.