Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.python > #80143
| References | (5 earlier) <mailman.15411.1414948574.18130.python-list@python.org> <4c0d5apoa3455vmkgdtp7nn25pl85fgmoh@4ax.com> <mailman.15414.1414957509.18130.python-list@python.org> <d26d5adlmfnkaji1ico6dpv9djah2obp1m@4ax.com> <5456AB26.4060503@davea.name> |
|---|---|
| Date | 2014-11-03 09:12 +1100 |
| Subject | Re: what can i do to improve my skill after finished python course on codecademy |
| From | Chris Angelico <rosuav@gmail.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.15420.1414966384.18130.python-list@python.org> (permalink) |
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
Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll 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
csiph-web