Ignore most memory comparisions by validating the lengths are the same first.  Becomes O(log(n)) from O(n) for correct_exists.
Ignore most memory comparisions by validating the lengths are the same first.  Becomes O(log(n)) from O(n) for correct_exists.

ignatenkobrain/gmqcc,111WARLOCK111/gmqcc,111WARLOCK111/gmqcc,ignatenkobrain/gmqcc