Tag
iteration
Coding
Resumable Iterators: Checkpoints for Lists and UTF-8 Files
Design a compact recovery cursor, then implement list and file iterators in Java and Python with runnable tests and precise restart semantics.
Coding
IPv4 Address Iterator: One 32-Bit Cursor
A lazy IPv4 iterator with Java and Python solutions, carry handling, the final-address boundary, and CIDR/IPv6 interview follow-ups.