mconigliaro (Mike Conigliaro)
- Login: mconigliaro
- Registered on: 09/29/2011
- Last sign in: 05/19/2021
Issues
| open | closed | Total | |
|---|---|---|---|
| Assigned issues | 0 | 0 | 0 |
| Reported issues | 0 | 1 | 1 |
Activity
09/29/2011
-
02:27 AM Ruby Feature #5378 (Closed): Prime.each is slow
- See discussion here: https://gist.github.com/1246868
require 'benchmark'
require 'prime'
def primes_up_to(n)
s = [nil, nil] + (2..n).to_a
(2..(n ** 0.5).to_i).reject { |i| s[i].nil? }.each do |i|
(i ** 2).step(n, i) {...