Puzzles! (by Spoon)
+9
uglymutt
Blackdragon
Garth
Pippynip
ThreeLetterSyndrom
akyra
maxf13
Spoon
Smaz
13 posters
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Re: Puzzles! (by Spoon)
Spoon Sun Feb 07, 2010 8:05 pm
common sense. try and solve it for a smaller group then apply the same method to the whole puzzle
Spoon
Re: Puzzles! (by Spoon)
ThreeLetterSyndrom Sun Feb 07, 2010 9:05 pm
So who leaves and on what day, then?Spoon wrote:common sense. try and solve it for a smaller group then apply the same method to the whole puzzle
ThreeLetterSyndrom- A resident.
Re: Puzzles! (by Spoon)
ThreeLetterSyndrom Sun Feb 07, 2010 9:47 pm
All of them?Spoon wrote:I said above They leave on day 100
ThreeLetterSyndrom- A resident.
Re: Puzzles! (by Spoon)
Spoon Sun Feb 07, 2010 9:48 pm
I think so.
anyway an easier puzzle:
A high school has a some what strange headmaster. On the first day, he has his students perform an odd opening day ceremony:
There are one thousand lockers and one thousand pupils in the school. The headmaster asks the first pupil to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth pupil does this to every fourth locker, and so on. After the process is completed with the thousandth pupil, how many lockers are open?
PS: max got it again (your annoying you know that)
anyway an easier puzzle:
A high school has a some what strange headmaster. On the first day, he has his students perform an odd opening day ceremony:
There are one thousand lockers and one thousand pupils in the school. The headmaster asks the first pupil to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth pupil does this to every fourth locker, and so on. After the process is completed with the thousandth pupil, how many lockers are open?
PS: max got it again (your annoying you know that)
Spoon
Re: Puzzles! (by Spoon)
akyra Sun Feb 07, 2010 10:32 pm
- Spoiler:
- 4?
taking 10 lockers... every one is opened so its o o o o o o o o o o
then if the person opens every second its o x o x o x o x o x
then if the next closes every 4th if its open or opens it if its shut o x o o o x o o o x
then the next every 5th. o x o o x x o o o o
10th o x o o x o x x x x
akyra
Re: Puzzles! (by Spoon)
akyra Mon Feb 08, 2010 12:32 pm
yeah.... I was using 10 as an example... I dunno I hate these games *huffs* lol
akyra
Re: Puzzles! (by Spoon)
Spoon Mon Feb 08, 2010 2:39 pm
- Spoiler:
- The answer for the 1st 10 lockers should look like this:
1-2-3-4-5-6-7-8-9-0
o-c-c-o-c--c-c-c-o-c
Spoon
Re: Puzzles! (by Spoon)
maxf13 Mon Feb 08, 2010 3:51 pm
Spoon wrote:
PS: max got it again (your annoying you know that)
thats cause i is epic
maxf13
Re: Puzzles! (by Spoon)
akyra Mon Feb 08, 2010 5:16 pm
I used to be good at problem solving... whatever happened to my brain 
akyra
Re: Puzzles! (by Spoon)
Some freaky guy Mon Feb 08, 2010 5:43 pm
akyra wrote:I used to be good at problem solving... whatever happened to my brain
Zombies ate it.
Some freaky guy- A resident.
Re: Puzzles! (by Spoon)
Spoon Mon Feb 08, 2010 7:37 pm
can we try and stay On topic unlike everywhere else
Spoon
Re: Puzzles! (by Spoon)
ThreeLetterSyndrom Mon Feb 08, 2010 8:09 pm
Spoon wrote:
A high school has a some what strange headmaster. On the first day, he has his students perform an odd opening day ceremony:
There are one thousand lockers and one thousand pupils in the school. The headmaster asks the first pupil to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth pupil does this to every fourth locker, and so on. After the process is completed with the thousandth pupil, how many lockers are open?
- Spoiler:
Going with the method "solve for a smaller group, then extrapolate" here.
6 students
c-c-c-c-c-c (Start) 0 open, 6 closed
o-o-o-o-o-o (First) 6 open, 0 closed
o-c-o-c-o-c (Second) 3 open, 3 closed
o-c-c-c-o-o (Third) 3 open, 3 closed
o-c-c-o-o-o (Fourth) 4 open, 2 closed
o-c-c-o-c-o (Fifth) 3 open, 3 closed
o-c-c-o-c-c (Sixth) 2 open, 4 closed
10 students:
c-c-c-c-c-c-c-c-c-c (Start) 0 open, 10 closed
o-o-o-o-o-o-o-o-o-o (First) 10 open, 0 closed
o-c-o-c-o-c-o-c-o-c (Second) 5 open, 5 closed
o-c-c-c-o-o-o-c-c-c (Third) 4 open, 6 closed
o-c-c-o-o-o-o-o-c-c (Fourth) 6 open, 4 closed
o-c-c-o-c-o-o-o-c-o (Fifth) 6 open, 4 closed
o-c-c-o-c-c-o-o-c-o (Sixth) 5 open, 5 closed
o-c-c-o-c-c-c-o-c-o (Seventh) 4 open, 6 closed
o-c-c-o-c-c-o-o-c-o (Eigth) 5 open, 5 closed
o-c-c-o-c-c-o-o-o-o (Ninth) 6 open, 4 closed
o-c-c-o-c-c-o-o-o-c (Tenth) 5 open, 5 closed
At half, the division seems 500-500, so I'm going to go with that. After number 500, every open after 500 becomes a close and vice versa. So: 500 open, 500 closed?
I could also bruteforce this on my computer. xD
ThreeLetterSyndrom- A resident.
Re: Puzzles! (by Spoon)
maxf13 Mon Feb 08, 2010 9:39 pm
i think we should all break out our programming skills and see if we can solve this problem using java/C++/pascal etc.
maxf13
Re: Puzzles! (by Spoon)
DubHertz Mon Feb 08, 2010 9:44 pm
Spoon wrote:can we try and stay On topic unlike everywhere else
DubHertz
Re: Puzzles! (by Spoon)
Spoon Mon Feb 08, 2010 9:52 pm
DubHertz wrote:Spoon wrote:can we try and stay On topic unlike everywhere else
thats off topic
unlike me? yeah probs.
Spoon
Re: Puzzles! (by Spoon)
ThreeLetterSyndrom Tue Feb 09, 2010 8:04 am
I think Python would be sufficient. Just use a list and a loop to manipulate the list...maxf13 wrote:i think we should all break out our programming skills and see if we can solve this problem using java/C++/pascal etc.
ThreeLetterSyndrom- A resident.
Re: Puzzles! (by Spoon)
maxf13 Tue Feb 09, 2010 4:42 pm
doesnt matter what language u do it in
i just know java so im doing it in that
i just know java so im doing it in that
maxf13
Re: Puzzles! (by Spoon)
ThreeLetterSyndrom Tue Feb 09, 2010 7:21 pm
Spoon wrote:
A high school has a some what strange headmaster. On the first day, he has his students perform an odd opening day ceremony:
There are one thousand lockers and one thousand pupils in the school. The headmaster asks the first pupil to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth pupil does this to every fourth locker, and so on. After the process is completed with the thousandth pupil, how many lockers are open?
- Spoiler:
- 31 lockers
ThreeLetterSyndrom- A resident.
Re: Puzzles! (by Spoon)
ThreeLetterSyndrom Fri Feb 12, 2010 6:15 pm
Strangely I now have a different answer.
- Spoiler:
32 Lockers:
1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
1 = open, 0 = closed
ThreeLetterSyndrom- A resident.
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