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(tye)Re3: (Golf): Sieve of Eratosthenes

by tye (Sage)
on May 20, 2001 at 01:56 UTC ( #81769=note: print w/replies, xml ) Need Help??

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  1. or download this
    sub sieve3 {
        grep{@_[map$a*$_,$_..@_/($a=$_)]=0if$_[$_]>1}@_=0..pop
    } #                  ^^
    ...
    for( @ARGV ) {
        print "$_: ",join(" ",sieve3($_)),$/;
    }
    
  2. or download this
    2=5-3(x2)    # 3..5, 5..7
    4=11-7(x3)   # 7..11, 13..17, 19..23
    6=29-23(x7)
    ...
    96=360749-360653
    112=370373-370261
    114=492227-492113
    

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[tye]: Is it just me, or do most python things have terrible logging/errors?
[LanX]: but but but ... the errors are nicely formatted!
[tye]: 1) The python stack traces show you the names of variables, not the values of variables. Almost never informative.
[LanX]: do you have a py job now?
[tye]: Right now I have errors trying to fetch stuff from graphite. It says 'apps not ready, check startup logs'. I eventually find the startup logs and see 'no apps found'. Looking for fixes to this problem...
[LanX]: no idea ... ask py monks! ;-p
[tye]: it turns out that this can be caused by almost anything going wrong. If you want to know what caused the problem, you have to try to load each app by-hand to see what problems it is having, because none of those will be logged.
[tye]: No, I write more Perl than py at work. But I have to deal with plenty of py things.

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