[docs] [issue32099] Use range in itertools roundrobin recipe

Serhiy Storchaka <storchaka+cpython@gmail.com> added the comment: I agree that using binary tree would be excessively here. I just wondering if there is a simple way to get rid of the quadratic complexity. In any case this does not matter much until you work with many hundreds or thousands of iterables. ---------- _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue32099> _______________________________________