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Re: what can i do to improve my skill after finished python course on codecademy

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Date Mon, 3 Nov 2014 09:12:56 +1100
Subject Re: what can i do to improve my skill after finished python course on codecademy
From Chris Angelico <rosuav@gmail.com>
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On Mon, Nov 3, 2014 at 9:07 AM, Dave Angel <davea@davea.name> wrote:
> Brute force would take a few millenia, as something like
>     ans = sum(range( BIG ) - sum(range(1000))
>
> But just knowing the math lets you simplify it to something like
>    ans = (1000 + BIG) * (BIG - 1000) / 2

Suggestion: Master the brute-force approach first, and use that (on
small ranges) to verify the simplified version. And if you already
happen to know the sum of all numbers from 1 to 100, say, then you can
test both approaches against that, to be sure they're right.

ChrisA

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Thread

what can i do to improve my skill after finished python course on codecademy fanhuhuai@gmail.com - 2014-11-01 08:01 -0700
  Re: what can i do to improve my skill after finished python course on codecademy alister <alister.nospam.ware@ntlworld.com> - 2014-11-01 22:01 +0000
    Re: what can i do to improve my skill after finished python course on codecademy Chris Angelico <rosuav@gmail.com> - 2014-11-02 09:10 +1100
    Re: what can i do to improve my skill after finished python course on codecademy Grant Edwards <invalid@invalid.invalid> - 2014-11-02 00:31 +0000
      Re: what can i do to improve my skill after finished python course on codecademy MRAB <python@mrabarnett.plus.com> - 2014-11-02 00:55 +0000
      Re: what can i do to improve my skill after finished python course on codecademy Chris Angelico <rosuav@gmail.com> - 2014-11-02 12:02 +1100
        Re: what can i do to improve my skill after finished python course on codecademy Grant Edwards <invalid@invalid.invalid> - 2014-11-02 17:30 +0000
      Re: what can i do to improve my skill after finished python course on codecademy Huhuai Fan <fanhuhuai@gmail.com> - 2014-11-02 06:49 -0800
        Re: what can i do to improve my skill after finished python course on codecademy Peter Otten <__peter__@web.de> - 2014-11-02 16:08 +0100
        Re: what can i do to improve my skill after finished python course on codecademy Joel Goldstick <joel.goldstick@gmail.com> - 2014-11-02 12:16 -0500
          Re: what can i do to improve my skill after finished python course on codecademy Seymore4Head <Seymore4Head@Hotmail.invalid> - 2014-11-02 14:10 -0500
            Re: what can i do to improve my skill after finished python course on codecademy Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-11-02 19:42 +0000
              Re: what can i do to improve my skill after finished python course on codecademy Seymore4Head <Seymore4Head@Hotmail.invalid> - 2014-11-02 15:45 -0500
              Re: what can i do to improve my skill after finished python course on codecademy Seymore4Head <Seymore4Head@Hotmail.invalid> - 2014-11-02 16:03 -0500
                Re: what can i do to improve my skill after finished python course on codecademy Joel Goldstick <joel.goldstick@gmail.com> - 2014-11-02 17:00 -0500
                Re: what can i do to improve my skill after finished python course on codecademy Dave Angel <davea@davea.name> - 2014-11-02 17:07 -0500
                Re: what can i do to improve my skill after finished python course on codecademy Chris Angelico <rosuav@gmail.com> - 2014-11-03 09:12 +1100
        Re: what can i do to improve my skill after finished python course on codecademy Abhiram <abhi.darkness@gmail.com> - 2014-11-02 22:51 +0530

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