2 ms·

Yep, when iterators do the trick, they're preferable to indexing. But some algorithms (e.g., the tortoise and hare algorithm for cycle detection) explicitly req

Yep, when iterators do the trick, they're preferable to indexing. But some algorithms (e.g., the tortoise and hare algorithm for cycle detection) explicitly require indexing.

llogiq 11y ago
Not necessarily – you can chain iterators and skip elements on the hare.
- catnaroek 11y ago
  You're right. I was thinking exclusively of the case where you have an array whose elements themselves are indices into the same array.