Just For Fun.......
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I missed one question on the Math portion of my SATs many years ago and it was that same question (actually it was how long a fence could be built with x number of posts). It killed my perfect score. :(
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Cut once in the middle. (1) Place one half on top of the other. Cut off one section length from the end. (2) Cut long boards in half. (3) Stack boards again and cut in the middle. (4) You'll have 10 pieces in 4 minutes, though cutting 4 boards at once would require some nice equipment. BW
If you're not part of the solution, you're part of the precipitate.
-- Steven Wright-- modified at 13:35 Monday 26th June, 2006
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I missed one question on the Math portion of my SATs many years ago and it was that same question (actually it was how long a fence could be built with x number of posts). It killed my perfect score. :(
espeir wrote:
how long a fence could be built with x number of posts
No of posts * diameter of 1 post? Regards, Nish
Nish’s thoughts on MFC, C++/CLI and .NET (my blog)
Currently working on C++/CLI in Action for Manning Publications. Also visit the Ultimate Toolbox blog (New) -
espeir wrote:
how long a fence could be built with x number of posts
No of posts * diameter of 1 post? Regards, Nish
Nish’s thoughts on MFC, C++/CLI and .NET (my blog)
Currently working on C++/CLI in Action for Manning Publications. Also visit the Ultimate Toolbox blog (New)No. The setup for that type of question is: "you have X posts, that need to be spaced D distance apart (for the cross peices). How long of a strait fence can you make?" The common wrong anser is X*d. The correct answer is (X-1)*D. If you're confused about why, set X = 2, and draw the fence |-|. This's why an off by one error is also called a fencepost error.
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No. The setup for that type of question is: "you have X posts, that need to be spaced D distance apart (for the cross peices). How long of a strait fence can you make?" The common wrong anser is X*d. The correct answer is (X-1)*D. If you're confused about why, set X = 2, and draw the fence |-|. This's why an off by one error is also called a fencepost error.
dan neely wrote:
No. The setup for that type of question is: "you have X posts, that need to be spaced D distance apart (for the cross peices). How long of a strait fence can you make?" The common wrong anser is X*d. The correct answer is (X-1)*D. If you're confused about why, set X = 2, and draw the fence |-|. This's why an off by one error is also called a fencepost error.
Yep, that's when there is spacing. If you assume no spacing, and that the posts are fixed into the ground - it's n * diameter. That's how I mentally pictured a fence :-) Regards, Nish
Nish’s thoughts on MFC, C++/CLI and .NET (my blog)
Currently working on C++/CLI in Action for Manning Publications. Also visit the Ultimate Toolbox blog (New) -
dan neely wrote:
No. The setup for that type of question is: "you have X posts, that need to be spaced D distance apart (for the cross peices). How long of a strait fence can you make?" The common wrong anser is X*d. The correct answer is (X-1)*D. If you're confused about why, set X = 2, and draw the fence |-|. This's why an off by one error is also called a fencepost error.
Yep, that's when there is spacing. If you assume no spacing, and that the posts are fixed into the ground - it's n * diameter. That's how I mentally pictured a fence :-) Regards, Nish
Nish’s thoughts on MFC, C++/CLI and .NET (my blog)
Currently working on C++/CLI in Action for Manning Publications. Also visit the Ultimate Toolbox blog (New) -
Nishant Sivakumar wrote:
Yep, that's when there is spacing. If you assume no spacing, and that the posts are fixed into the ground - it's n * diameter. That's how I mentally pictured a fence
You'd've gotten it wrong on the test then. :)
dan neely wrote:
You'd've gotten it wrong on the test then.
Nope, when I read the "spaced" part of the question, I'd know that fences are not made the same way in all parts of the world :-) Regards, Nish
Nish’s thoughts on MFC, C++/CLI and .NET (my blog)
Currently working on C++/CLI in Action for Manning Publications. Also visit the Ultimate Toolbox blog (New) -
dan neely wrote:
No. The setup for that type of question is: "you have X posts, that need to be spaced D distance apart (for the cross peices). How long of a strait fence can you make?" The common wrong anser is X*d. The correct answer is (X-1)*D. If you're confused about why, set X = 2, and draw the fence |-|. This's why an off by one error is also called a fencepost error.
Yep, that's when there is spacing. If you assume no spacing, and that the posts are fixed into the ground - it's n * diameter. That's how I mentally pictured a fence :-) Regards, Nish
Nish’s thoughts on MFC, C++/CLI and .NET (my blog)
Currently working on C++/CLI in Action for Manning Publications. Also visit the Ultimate Toolbox blog (New)Nishant Sivakumar wrote:
That's how I mentally pictured a fence :)
A fence made entirely of posts? Yeah, i could see that... but it'd get real pricey (unless you were building it in the middle of a heavily wooded area and could just cut your own posts as-needed). Have you seen many of these?
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Nishant Sivakumar wrote:
That's how I mentally pictured a fence :)
A fence made entirely of posts? Yeah, i could see that... but it'd get real pricey (unless you were building it in the middle of a heavily wooded area and could just cut your own posts as-needed). Have you seen many of these?
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Shog9 wrote:
A fence made entirely of posts? Yeah, i could see that... but it'd get real pricey (unless you were building it in the middle of a heavily wooded area and could just cut your own posts as-needed). Have you seen many of these?
In Kerala (my state in India), most fences are made of concrete - in the towns. In the villages, people do have fences that are essentially a stack of trees - living fences :-) The trees are planted one after the other in a line to form the fence. There's no spacing between each tree. Regards, Nish
Nish’s thoughts on MFC, C++/CLI and .NET (my blog)
Currently working on C++/CLI in Action for Manning Publications. Also visit the Ultimate Toolbox blog (New) -
Shog9 wrote:
A fence made entirely of posts? Yeah, i could see that... but it'd get real pricey (unless you were building it in the middle of a heavily wooded area and could just cut your own posts as-needed). Have you seen many of these?
In Kerala (my state in India), most fences are made of concrete - in the towns. In the villages, people do have fences that are essentially a stack of trees - living fences :-) The trees are planted one after the other in a line to form the fence. There's no spacing between each tree. Regards, Nish
Nish’s thoughts on MFC, C++/CLI and .NET (my blog)
Currently working on C++/CLI in Action for Manning Publications. Also visit the Ultimate Toolbox blog (New)Nishant Sivakumar wrote:
The trees are planted one after the other in a line to form the fence. There's no spacing between each tree.
Neat. :)
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Nishant Sivakumar wrote:
That's how I mentally pictured a fence :)
A fence made entirely of posts? Yeah, i could see that... but it'd get real pricey (unless you were building it in the middle of a heavily wooded area and could just cut your own posts as-needed). Have you seen many of these?
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No. The setup for that type of question is: "you have X posts, that need to be spaced D distance apart (for the cross peices). How long of a strait fence can you make?" The common wrong anser is X*d. The correct answer is (X-1)*D. If you're confused about why, set X = 2, and draw the fence |-|. This's why an off by one error is also called a fencepost error.
dan neely wrote:
off by one error
That's an OBOB* in my lexicon.:-D (Appologies to our mascot!) *OBOB: Off-By-One Bug. A common error in looping/counting algorithms. 'til next we type... HAVE FUN!! -- Jesse
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dan neely wrote:
off by one error
That's an OBOB* in my lexicon.:-D (Appologies to our mascot!) *OBOB: Off-By-One Bug. A common error in looping/counting algorithms. 'til next we type... HAVE FUN!! -- Jesse
Obi-one
Some of us walk the memory lane, others plummet into a rabbit hole
Tree in C# || Fold With Us! || sighist -
Obi-one
Some of us walk the memory lane, others plummet into a rabbit hole
Tree in C# || Fold With Us! || sighist:laugh::laugh::laugh: 'til next we type... HAVE FUN!! -- Jesse
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A carpenter was in a terrible hurry. He had to work as quickly as possible to cut a very heavy 10 foot plank into 10 equal sections. If it takes 1 minute per cut, how long will it take him to get the 10 equal pieces? "C++ will solve any problem."
