Comments on: Euler Problem 109 http://www.dailydoseofexcel.com/archives/2009/08/29/euler-problem-109/ Daily posts of Excel tips…and other stuff Thu, 09 Feb 2012 19:28:40 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Michael http://www.dailydoseofexcel.com/archives/2009/08/29/euler-problem-109/#comment-51885 Michael Wed, 06 Oct 2010 00:09:00 +0000 http://www.dailydoseofexcel.com/?p=2923#comment-51885 <p>Angela -</p> <p>A double bull is fifty.</p> <p>See <a href="http://news.bbc.co.uk/sport/hi/english/static/in_depth/other_sports/2002/world_darts/check_out.stm" rel="nofollow">http://news.bbc.co.uk/sport/hi/english/static/in_depth/other_sports/2002/world_darts/check_out.stm</a></p> <p>Any combination that puts you 50 away works. There are many.</p> <p><i>...mrt</i></p> Angela -

A double bull is fifty.

See http://news.bbc.co.uk/sport/hi/english/static/in_depth/other_sports/2002/world_darts/check_out.stm

Any combination that puts you 50 away works. There are many.

…mrt

]]> By: Angela Brown http://www.dailydoseofexcel.com/archives/2009/08/29/euler-problem-109/#comment-51827 Angela Brown Mon, 04 Oct 2010 23:39:00 +0000 http://www.dailydoseofexcel.com/?p=2923#comment-51827 <p>If my last throw is a Double bulls eye what 2 possible combination's could I use to win with my first 2 darts?</p> If my last throw is a Double bulls eye what 2 possible combination’s could I use to win with my first 2 darts?

]]> By: Michael http://www.dailydoseofexcel.com/archives/2009/08/29/euler-problem-109/#comment-40863 Michael Tue, 01 Sep 2009 17:31:00 +0000 http://www.dailydoseofexcel.com/?p=2923#comment-40863 <p>Hi Josh -</p> <p>Thanks.</p> <p>I'd agree, probably won't make a difference. Since doubles are an ordered sort, as soon as one double fails by summing >= 100, leave the loop, for all the remaining ones, being higher, will fail too.</p> <p>I sort the problems in ascending difficulty, and I'm on the upper part of page 3. These are solved by ~1200 to 1500 members, and they are <i>really</i> challenging me. Problem 109 was the first in a while that I had an insight to. I give full credit to those days in Dunoon, Scotland. ;-)</p> <p><i>...mrt</i></p> Hi Josh -

Thanks.

I’d agree, probably won’t make a difference. Since doubles are an ordered sort, as soon as one double fails by summing >= 100, leave the loop, for all the remaining ones, being higher, will fail too.

I sort the problems in ascending difficulty, and I’m on the upper part of page 3. These are solved by ~1200 to 1500 members, and they are really challenging me. Problem 109 was the first in a while that I had an insight to. I give full credit to those days in Dunoon, Scotland. ;-)

…mrt

]]> By: JoshG http://www.dailydoseofexcel.com/archives/2009/08/29/euler-problem-109/#comment-40861 JoshG Tue, 01 Sep 2009 16:08:00 +0000 http://www.dailydoseofexcel.com/?p=2923#comment-40861 <p>It figures you would go with this problem next. I remember not caring for it much. I used a collection to store the dart throws to make sure there weren't any duplicates - not very efficient. I like your way much better. One thing I did (and this probably won't make much difference in your code at all) is to throw the last dart first. In other words, the first dart was always a double. This guarantees a double and may also allow you to jump out of the loop earlier. Well done, sir.</p> <p>-Josh</p> It figures you would go with this problem next. I remember not caring for it much. I used a collection to store the dart throws to make sure there weren’t any duplicates – not very efficient. I like your way much better. One thing I did (and this probably won’t make much difference in your code at all) is to throw the last dart first. In other words, the first dart was always a double. This guarantees a double and may also allow you to jump out of the loop earlier. Well done, sir.

-Josh

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