Sandeep Ghael sghael
sghael
/ it.rb
Last active
August 29, 2015 13:56
— forked from anonymous/it.rb
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| def it(n) | |
| x = [*2..n] | |
| x.each do |i| | |
| [*(i+1)..n].each { |j| x.delete(j) if (j%i).zero? } | |
| end | |
| end | |
| # 1) what does it do? | |
| # 2) how fast is it? | |
| # 3) can you make it faster? |