[algogeeks] Sequence problem
find the nth term for the sequence... 3, 8, 12, 17, 22, 28, 35 -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] expectation values..
http://www.spoj.pl/problems/FAVDICE/
On Sun, Jun 17, 2012 at 8:43 PM, Doom duman...@gmail.com wrote:
If we expand it.. E(t) = E(t1) + E(t2) + E(t3) + ... + E(tn);
here I am able to derive E(t1) as N/1 using the expression E(t1) = 1/N +
((N-1)/N)(E(t1) + 1);
but how do I proceed?
How do I derive the E(t2) and so on??
What do these values mean??
Does it mean like E(t2) is the no. of expected throws to get value 2??
Any help on this?
On Sunday, 17 June 2012 00:09:13 UTC+5:30, amitesh wrote:
This problem is similar to Coupan collector problem.
http://en.wikipedia.org/wiki/**Coupon_collector%27s_problemhttp://en.wikipedia.org/wiki/Coupon_collector%27s_problem
In your case the answer is
[image: For N-Dice ; \newline \sum_{i=1}^{N} N/i \newline for\; N =~2 ;
\newline \sum_{i=1}^{2} 2/i = 2/1 + 2/2 = 3 \newline]
Hope it helps!
--
Amitesh
On Sat, Jun 16, 2012 at 5:18 PM, Gaurav Popli gpgaurav.n...@gmail.comwrote:
What is the expected number of throws of his die while it has N sides
so that each number is rolled at least once?
e.g
for n=2 ans 3.00
n=12 ans is 37.24...
i refrd to expectation tutuorial at
http://www.codechef.com/wiki/**tutorial-expectationhttp://www.codechef.com/wiki/tutorial-expectationbut
still couldnt
get the logic...
any help?
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Re: [algogeeks] expectation values..
got it ..thanks!!
and this was not asked in any interview as i know...i read this quesn from
SPOJ..
On Sun, Jun 17, 2012 at 12:13 AM, Amitesh Singh singh.amit...@gmail.comwrote:
just curious to know if this question is asked in any interviews? Google
interview?
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Amitesh
On Sun, Jun 17, 2012 at 12:09 AM, Amitesh Singh
singh.amit...@gmail.comwrote:
This problem is similar to Coupan collector problem.
http://en.wikipedia.org/wiki/Coupon_collector%27s_problem
In your case the answer is
[image: For N-Dice ; \newline \sum_{i=1}^{N} N/i \newline for\; N =~2 ;
\newline \sum_{i=1}^{2} 2/i = 2/1 + 2/2 = 3 \newline]
Hope it helps!
--
Amitesh
On Sat, Jun 16, 2012 at 5:18 PM, Gaurav Popli gpgaurav.n...@gmail.comwrote:
What is the expected number of throws of his die while it has N sides
so that each number is rolled at least once?
e.g
for n=2 ans 3.00
n=12 ans is 37.24...
i refrd to expectation tutuorial at
http://www.codechef.com/wiki/tutorial-expectation but still couldnt
get the logic...
any help?
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[algogeeks] expectation values..
What is the expected number of throws of his die while it has N sides so that each number is rolled at least once? e.g for n=2 ans 3.00 n=12 ans is 37.24... i refrd to expectation tutuorial at http://www.codechef.com/wiki/tutorial-expectation but still couldnt get the logic... any help? -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: power func
yeah you are right im talking abt that quesn only
i got the power part but how could i store that F(n)(the gcd) part
which is supposedly very large..?
On Fri, May 4, 2012 at 3:28 AM, shiv narayan narayan.shiv...@gmail.com wrote:
it looks you are talking about unlock 1 or 2 on spoj, use your own
recursive power function and since result may be very large so at
every stage take mod.
pow(a,b)
{
if(b==1)
return a;
else
{
if(b%2==0)
return (pow(a,b/2)%mod *pow(a,b/2)%mod) %mod
else
return pow(a,b/2)%mod *pow(a,b/2)%mod) %mod)*a)%mod))) //check
parenthesis
}
}
On Apr 29, 7:20 pm, Gaurav Popli gpgaurav.n...@gmail.com wrote:
givenn gcd of two integers a and b,..
you hvae to find max value of a^b%mod where mod is also given...
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[algogeeks] power func
givenn gcd of two integers a and b,.. you hvae to find max value of a^b%mod where mod is also given... -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
[algogeeks] basic C
http://www.spoj.pl/problems/HAJIME/
referring to this link
i came up with this soln
typedef/**/struct{unsigned/**/aku;char/**/*const/**/soku}zan;
typedef struct{unsigned(aku);char*const(soku)}zan;
need to know how to remove the space btw the second typedef and struct
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[algogeeks] pascal triangle
calculate the number of values in the triangle that are different from 1 and less than or equal to K. k=2 1 1 1 1 2 1 1 3 3 1 1 4 6 4 1 1 5 10 10 5 1 1 6 15 20 15 6 1 e.g for k=2 ans is 1 and k=6 ans is 10 -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
[algogeeks] Array problem
given an array of size n...
create an array of size n such that ai where ai is the element in the
new array at index location i is equal to sum of all elements in
original array which are smaller than element at posn i...
e.g
ar[]={3,5,1,6,7,8};
ar1[]={0,3,0,9,15,22};
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Re: [algogeeks] puzzle
great observation thanks!! On Wed, Feb 29, 2012 at 10:31 PM, Anurag atri anu.anurag@gmail.com wrote: @shady: Observation only .. On Wed, Feb 29, 2012 at 9:03 PM, shady sinv...@gmail.com wrote: anurag how did you reach that solution ? can you elaborate... On Wed, Feb 29, 2012 at 8:11 PM, Anurag atri anu.anurag@gmail.com wrote: nth term : (n! + 2^n - n) On Wed, Feb 29, 2012 at 11:05 AM, Vaibhav Mittal vaibhavmitta...@gmail.com wrote: Ntn else is provided..?? On Feb 28, 2012 12:51 PM, Gaurav Popli abeygau...@gmail.com wrote: Given a sequance of natural numbers. Find N'th term of this sequence. a1=2, a2=4, a3=11, a4=36, a5=147, a6=778 ... ... ... ... aN. this is a coding quesn and O(n) soln is also welcome... -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Regards Anurag Atri -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Regards Anurag Atri III year Computer Engineering Delhi College Of Engineering -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
[algogeeks] puzzle
Given a sequance of natural numbers. Find N'th term of this sequence. a1=2, a2=4, a3=11, a4=36, a5=147, a6=778 ... ... ... ... aN. this is a coding quesn and O(n) soln is also welcome... -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Doubt
actually the questn should go like this.wud that be good /optimised with space because we can use more storages for a tree without freeing them On Thu, Aug 4, 2011 at 10:09 AM, rajeev bharshetty rajeevr...@gmail.com wrote: Since you are maintaining two different data structures ,one for the old tree and the other for new tree . I think this isn't considered in-place algorithm . The algorithm to be in-place should not use any additional data structures . Correct me if I am wrong . On Thu, Aug 4, 2011 at 2:52 AM, Gaurav Popli abeygau...@gmail.com wrote: good quesn.i also want to knowjust in case On Thu, Aug 4, 2011 at 2:50 AM, Anurag Narain anuragnar...@gmail.com wrote: suppose there is a binary tree and i am creating another tree which is same as the previous one. but while creating the new tree i am freeing the nodes of my old tree(i.e., i create one node in new tree and delete the corresponding node in old tree and continue the process till the new tree is formed which is same as old tree but the old tree now does not exist) would this conversion be considered in-place?? -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Regards Rajeev N B Winners Don't do Different things , they do things Differently -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Doubt
good quesn.i also want to knowjust in case On Thu, Aug 4, 2011 at 2:50 AM, Anurag Narain anuragnar...@gmail.com wrote: suppose there is a binary tree and i am creating another tree which is same as the previous one. but while creating the new tree i am freeing the nodes of my old tree(i.e., i create one node in new tree and delete the corresponding node in old tree and continue the process till the new tree is formed which is same as old tree but the old tree now does not exist) would this conversion be considered in-place?? -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] atoi()
and also ignore starting spaces if dr is any... On Sun, Jul 24, 2011 at 12:55 AM, hary rathor harry.rat...@gmail.com wrote: int number=0; read linearly if(ch=='-'||ch=='+') number=-1; ch=str[i]; chack every char is if(ch'0'ch'9') then number =number *10+ch-'0'; -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: stacks
it is given in tanenbaum On Sat, Jul 23, 2011 at 9:49 PM, Pankaj jatka.oppimi...@gmail.com wrote: Can you please tell us from where we can find such questions? On Sat, Jul 23, 2011 at 4:21 PM, Nikhil Gupta nikhilgupta2...@gmail.com wrote: Nice question Kamakshi. The person above has given almost a perfect answer. For example i=3, we will pop the elements one by one from the top of the 1st stack and pushed to the 2nd stack until the value (top - i) is reached. On Sat, Jul 23, 2011 at 3:52 PM, ross jagadish1...@gmail.com wrote: Well. the idea of an array is - given an integer 'i', you should support RANDOM ACCESS to the ith element in the 1d array. Since, we have two stacks, if you want to access an ith element ( say, i = 5 ),pop all the top 4 elements from the 1st stack and push it to the second stack. Now, access the 5th element on top of the 1st stack, then, pop the elements from the 2nd stack back and push them to the 1st stack. However, access is O(n) due to the inherent property of a stack which forbids random access! On Jul 23, 2:00 pm, Kamakshii Aggarwal kamakshi...@gmail.com wrote: consider a language that does no have arrays...but u can define stack data type like stack s; using pop ,push and other operations on 2 stacks,how can one dimensions array can be implemented?? -- Regards, Kamakshi kamakshi...@gmail.com -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Nikhil Gupta Senior Co-ordinator, Publicity CSI, NSIT Students' Branch NSIT, New Delhi, India -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Printf evaluation
associativity rule is compiler dependent ...thats why undefined... On Fri, Jul 22, 2011 at 5:46 PM, Kamakshii Aggarwal kamakshi...@gmail.com wrote: undefined behaviour. since value of i is changing more than once between two sequence points.. On Fri, Jul 22, 2011 at 5:42 PM, suresh srinivasan suree...@gmail.com wrote: Output: 5,4,3,1 Explanation: Since the brackets acts as right precedence, the execution of the statement is from right to left. The comma separates the individual. For i++, it prints the current 'i' value and increments it by 1. For ++i, it increments the value by 1 and prints the updated value of 'i'. -- Regards, Suresh.S -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Regards, Kamakshi kamakshi...@gmail.com -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Printf evaluation
may be im wrongbut i read it somewhere about it...the arguments of a function are evaluated in a associativity that is compiler dependent... for ex... printf(%d %d %d ,fun1(),fun2(),fun3()); the order in which functions are evaluated are compiler dependent On Fri, Jul 22, 2011 at 7:20 PM, Abhinav Verma abhinav.verma6...@gmail.com wrote: Its not the associativity which is undefined (Associativity has been defined clearly by the C Standards for each and every operator). Its the order of evaluation between 2 sequence points which is undefined and hence compiler-dependent. On gcc version 4.4.3, output generated is 5551. On some other compiler, the output may differ. On Fri, Jul 22, 2011 at 6:09 PM, Gaurav Popli abeygau...@gmail.com wrote: associativity rule is compiler dependent ...thats why undefined... On Fri, Jul 22, 2011 at 5:46 PM, Kamakshii Aggarwal kamakshi...@gmail.com wrote: undefined behaviour. since value of i is changing more than once between two sequence points.. On Fri, Jul 22, 2011 at 5:42 PM, suresh srinivasan suree...@gmail.com wrote: Output: 5,4,3,1 Explanation: Since the brackets acts as right precedence, the execution of the statement is from right to left. The comma separates the individual. For i++, it prints the current 'i' value and increments it by 1. For ++i, it increments the value by 1 and prints the updated value of 'i'. -- Regards, Suresh.S -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Regards, Kamakshi kamakshi...@gmail.com -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Coding..........
an O(n) soln traveres the array...as you receive odd number put that index in queuewhen received an even numb check if queue is empty or not...if queue is empty the do nothing else swap with the head of the queue hope it worksit also maintains the stability of aarray... On Fri, Jul 22, 2011 at 6:39 PM, Kunal Patil kp101...@gmail.com wrote: @Sunny: Excellent explanation ( solution) !! -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Coding..........
oh sorry for above soln...it will require many passes and hence inefficient... On Fri, Jul 22, 2011 at 9:02 PM, Gaurav Popli abeygau...@gmail.com wrote: an O(n) soln traveres the array...as you receive odd number put that index in queuewhen received an even numb check if queue is empty or not...if queue is empty the do nothing else swap with the head of the queue hope it worksit also maintains the stability of aarray... On Fri, Jul 22, 2011 at 6:39 PM, Kunal Patil kp101...@gmail.com wrote: @Sunny: Excellent explanation ( solution) !! -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Interview Puzzle - 100 Prisoners and Caps
or we cud make more easy for prisoners...instead of counting whether even or notthe person at the back can say the color of the hat which the prisoner in the immediate front is wearing. by this atleast 50% prisoners will be relaesed/. it will all depend on thr cooperation ;) On Fri, Jul 22, 2011 at 11:25 PM, Vishal Jain jainv...@gmail.com wrote: I think Aditi's solution is correct. I was doing the same thing using XOR function... So basically I was saying to use XOR and interviewer was asking for something better... I could not find this solution... Thanks Aditi. Thanks Regards Vishal Jain MNo: +91-9540611889 Tweet @jainvis Blog @ jainvish.blogspot.com Success taste better when target achieved is bigger. P We have a responsibility to the environment. Before printing this e-mail or any other document, let's ask ourselves whether we need a hard copy. On Fri, Jul 22, 2011 at 10:19 PM, aditi garg aditi.garg.6...@gmail.com wrote: I think this can be answered like dis... let us say that the persons have decided amongst themselves that if the the number of people wearing white in front of dem is even he wud say white and if odd he wud say black Now suppose the 100th person counts the number of hats and finds it to be even... he wud say white... now the 99th person will do the same...if he still finds the number to be even and since the 100th person sed white(i.e even) he would say black...now if the 100th person had sed black (ie odd white) and the count comes out to be even thus 99 wud be wearing a white hat... Now that 98th person knows dat 99 had sed the correct hat and using the same method can say the correct hat color...thus all can be saved except the 100th prisoner... Also note dat the 100th prisoner also has a 50% chance to survive... Hope dis helps :) On Fri, Jul 22, 2011 at 10:05 PM, Shubham Maheshwari shubham@gmail.com wrote: could some1 plz post the xplainations ... On Fri, Jul 22, 2011 at 8:04 PM, Pankaj jatka.oppimi...@gmail.com wrote: Chetan, No. How could you relate this problem with that? Do you find something similar? ~ Pankaj On Fri, Jul 22, 2011 at 8:01 PM, chetan kapoor chetankapoor...@gmail.com wrote: josehus problem??? On Fri, Jul 22, 2011 at 7:57 PM, Pankaj jatka.oppimi...@gmail.com wrote: Skipp Riddle, Yes. 100th prisoner will risk his life. Similar puzzle was discuss recently. Does anyone remember the name or thread? ~ Pankaj On Fri, Jul 22, 2011 at 7:55 PM, SkRiPt KiDdIe anuragmsi...@gmail.com wrote: Worst case 99 get released. Is that correct..? -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Aditi Garg Undergraduate Student Electronics Communication Divison NETAJI SUBHAS INSTITUTE OF TECHNOLOGY Sector 3, Dwarka New Delhi 9718388816 -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to
Re: [algogeeks] Interview Puzzle - 100 Prisoners and Caps
oh sorry...i didnt see.yeah..you are rightthanks.. On Sat, Jul 23, 2011 at 1:06 AM, sunny agrawal sunny816.i...@gmail.com wrote: But that will save only 50% of the prisoners...as compare to 99.5% in that of even Odd case Read that post carefully On Sat, Jul 23, 2011 at 1:04 AM, Gaurav Popli abeygau...@gmail.com wrote: or we cud make more easy for prisoners...instead of counting whether even or notthe person at the back can say the color of the hat which the prisoner in the immediate front is wearing. by this atleast 50% prisoners will be relaesed/. it will all depend on thr cooperation ;) On Fri, Jul 22, 2011 at 11:25 PM, Vishal Jain jainv...@gmail.com wrote: I think Aditi's solution is correct. I was doing the same thing using XOR function... So basically I was saying to use XOR and interviewer was asking for something better... I could not find this solution... Thanks Aditi. Thanks Regards Vishal Jain MNo: +91-9540611889 Tweet @jainvis Blog @ jainvish.blogspot.com Success taste better when target achieved is bigger. P We have a responsibility to the environment. Before printing this e-mail or any other document, let's ask ourselves whether we need a hard copy. On Fri, Jul 22, 2011 at 10:19 PM, aditi garg aditi.garg.6...@gmail.com wrote: I think this can be answered like dis... let us say that the persons have decided amongst themselves that if the the number of people wearing white in front of dem is even he wud say white and if odd he wud say black Now suppose the 100th person counts the number of hats and finds it to be even... he wud say white... now the 99th person will do the same...if he still finds the number to be even and since the 100th person sed white(i.e even) he would say black...now if the 100th person had sed black (ie odd white) and the count comes out to be even thus 99 wud be wearing a white hat... Now that 98th person knows dat 99 had sed the correct hat and using the same method can say the correct hat color...thus all can be saved except the 100th prisoner... Also note dat the 100th prisoner also has a 50% chance to survive... Hope dis helps :) On Fri, Jul 22, 2011 at 10:05 PM, Shubham Maheshwari shubham@gmail.com wrote: could some1 plz post the xplainations ... On Fri, Jul 22, 2011 at 8:04 PM, Pankaj jatka.oppimi...@gmail.com wrote: Chetan, No. How could you relate this problem with that? Do you find something similar? ~ Pankaj On Fri, Jul 22, 2011 at 8:01 PM, chetan kapoor chetankapoor...@gmail.com wrote: josehus problem??? On Fri, Jul 22, 2011 at 7:57 PM, Pankaj jatka.oppimi...@gmail.com wrote: Skipp Riddle, Yes. 100th prisoner will risk his life. Similar puzzle was discuss recently. Does anyone remember the name or thread? ~ Pankaj On Fri, Jul 22, 2011 at 7:55 PM, SkRiPt KiDdIe anuragmsi...@gmail.com wrote: Worst case 99 get released. Is that correct..? -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Aditi Garg Undergraduate Student Electronics Communication Divison NETAJI SUBHAS INSTITUTE OF TECHNOLOGY Sector 3, Dwarka New Delhi 9718388816 -- You
Re: [algogeeks] C - pre post increment
dont you think it is illegal using x=x-- or x=--x;??
On Thu, Jul 21, 2011 at 2:56 PM, karthiga m karthichandr...@gmail.com wrote:
in code A using pr e- decrement therefore i gets decremented when
checking while condition so
it will print as 9 8 7 6 5 4 3 2 1 .
in code B using post-decrement it will prints like 9 8 7 6 5 4 3 2 1 0
here why zero printing means while checking while condition x-- have
previous value..therefore at tht time x-- is 1 so while condition
executing and prints x value as zero.
On 7/21/11, Reynald reynaldsus...@gmail.com wrote:
Code: A
int main()
{
int x = 10;
while ( x = --x)
printf( %d , x);
getchar();
}
Code: B
int main()
{
int x = 10;
while ( x = x--)
printf( %d , x);
getchar();
}
Does Code-A and Code-B work similar? Justify.
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Re: [algogeeks] Re: Ever growing sorted linked list
i want to ask one thing...the way some are saying first check with 2 then 4 and then 16to reach at that place we are suppose to traverse it and also hav eto put a condition say like countn or something...in this case also we are comparing so whats the usecorrect me if im wrong. On Wed, Jul 20, 2011 at 6:58 PM, bittu shashank7andr...@gmail.com wrote: can be done in O(n) find tow nodes from starting position find two nodes p,q such that p k k q as linked list is sorted we have to keep going on in right direction complexity will no less then O(N) as its linked list there is no notion of binary search sorted linked list think out why ? only think we can apply some logic to reduce the comparisons that's i also think will be gr8 improvement but approach sounds good if start comparing the nodes value using multiple of 2 fact .e.g. take an integer i=2^j from j=0 to start comparing 2^0th node, 2^1th node, 2^2th node2^jth node might be we are able to reduce the number of comparisons do notify me via gmail if i am wrong if u find difficulty in TC ? else happy learning if this would have been sorted array then we could have been solved it O(logn) suing same approach. Thanks Shashank Mani Computer Science Birla Institute of Technology, Mesra -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: Microsoft
is it given that string alphabets wud be in alphabetical order...?? On Thu, Jul 21, 2011 at 12:04 AM, Kamakshii Aggarwal kamakshi...@gmail.com wrote: first count the no of elements to be printed say it is 'n'. now start from n-1 and start expanding the array from right to left.. On Wed, Jul 20, 2011 at 10:56 PM, surender sanke surend...@gmail.com wrote: try from back end surender On Wed, Jul 20, 2011 at 9:54 PM, Soumya Prasad Ukil ukil.sou...@gmail.com wrote: Two passes over the original array is required. On 20 July 2011 08:10, SAMMM somnath.nit...@gmail.com wrote: You can do it using stack concept:-- Pop the element from the end , taking two variable index1, index2 and Ch(character to Iterate) Eg:- a1b4 here index1=4 , Ch='b', index2=1; Start filling the element of Ch from the extreme end of the array .. From right hand side . The array will look like this :- a b b b b In next iteration : Index1=index2,ch=a, index= no value( Underflow) repeat the same process giving:- a b b b b. (soln). Add element at the end .. Like character 'b' is added from the Right hand end of the array . If any bug in my approach ... comments me ... -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- regards, soumya prasad ukil -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Regards, Kamakshi kamakshi...@gmail.com -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Ever growing sorted linked list
i dont understand it..if k is at position an let supposeso to check at that position dont you have to traverse till that position ...is thr anything else than the head of list...??or i understood wrongly...?? On Mon, Jul 18, 2011 at 9:55 PM, sagar pareek sagarpar...@gmail.com wrote: Update on 2nd line 2. if( ptr2=ptr1-next-next...(5 or 10 times) ) goto 3. else make linear search till NULL encounter and exit with the solution On Mon, Jul 18, 2011 at 7:41 PM, sagar pareek sagarpar...@gmail.com wrote: i have one approach :- first compare root-data and k if k is very much greater than root-data then set next=5or10 ur choice else set next 2or3 ur choice take two pointers ptr1 and ptr2 now lets take k is much greater than root-data then 1. set ptr1=root //initially 2. if( ptr2=ptr1-next-next...(5 or 10 times) ) else make linear search till NULL encounter 3. if ptr2-data==k return its position 4. else if (ptr2-datak) set ptr1=ptr2 goto 2 5. else traverse the ptr1 upto ptr2, if found return its position else return fail if anyone has more efficient solution then pls tell :) On Mon, Jul 18, 2011 at 6:53 PM, Dumanshu duman...@gmail.com wrote: You have a sorted linked list of integers of some length you don't know and it keeps on increasing. You are given a number k. Print the position of the number k. Basically, you have to search for number k in the ever growing sorted list and print its position. Please write the complexity of whatever solution you propose. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Regards SAGAR PAREEK COMPUTER SCIENCE AND ENGINEERING NIT ALLAHABAD -- Regards SAGAR PAREEK COMPUTER SCIENCE AND ENGINEERING NIT ALLAHABAD -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: Ever growing sorted linked list
yeah...im saying to reach position n at which k is placed we have to
trverse n positions from head or not...??
and i didnt understand the use of ever increasing...please elaborate on it..
On Tue, Jul 19, 2011 at 2:08 AM, Dumanshu duman...@gmail.com wrote:
@Swathi: plz give the TC of ur algo (exponential plus log)
On Jul 18, 10:14 pm, Swathi chukka.swa...@gmail.com wrote:
The solution to this problem will be a combination of exponential increase
and the binary search..
start = 0;
end = 0;
index =0;
middle = 0;
while (1)
{
if(a[start] == data)
return start;
if(a[end] == data)
return end;
if(data end)
{
start = end;
end = pow(start,2); // here we are consider exponential for faster
search.
// no need to check any boundary conditions as the array is infinite
continue;
}
else
{
// do binary search between start index and end index because data is
inbetween a[start] and a[end]
}
}
Hope this helps...
On Mon, Jul 18, 2011 at 10:32 PM, Gaurav Popli
gpgaurav.n...@gmail.comwrote:
i dont understand it..if k is at position an let supposeso to
check at that position dont you have to traverse till that position
...is thr anything else than the head of list...??or i understood
wrongly...??
On Mon, Jul 18, 2011 at 9:55 PM, sagar pareek sagarpar...@gmail.com
wrote:
Update on 2nd line
2. if( ptr2=ptr1-next-next...(5 or 10 times) ) goto 3.
else
make linear search till NULL encounter and exit with the solution
On Mon, Jul 18, 2011 at 7:41 PM, sagar pareek sagarpar...@gmail.com
wrote:
i have one approach :-
first compare root-data and k
if k is very much greater than root-data then set next=5or10 ur choice
else set next 2or3 ur choice
take two pointers ptr1 and ptr2
now lets take k is much greater than root-data
then
1. set ptr1=root //initially
2. if( ptr2=ptr1-next-next...(5 or 10 times) ) else make linear
search till NULL encounter
3. if ptr2-data==k return its position
4. else if (ptr2-datak) set ptr1=ptr2 goto 2
5. else traverse the ptr1 upto ptr2, if found return its position else
return fail
if anyone has more efficient solution then pls tell :)
On Mon, Jul 18, 2011 at 6:53 PM, Dumanshu duman...@gmail.com wrote:
You have a sorted linked list of integers of some length you don't
know and it keeps on increasing. You are given a number k. Print the
position of the number k.
Basically, you have to search for number k in the ever growing sorted
list and print its position.
Please write the complexity of whatever solution you propose.
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COMPUTER SCIENCE AND ENGINEERING
NIT ALLAHABAD
--
Regards
SAGAR PAREEK
COMPUTER SCIENCE AND ENGINEERING
NIT ALLAHABAD
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Re: [algogeeks] Re: MICROSOFT
cant we just dotraverse using recursion and instead of printing it just pass to function which is making BST?? and is this right as someone above said first sort it and then make BST... dont we want that root of both Tree to be same or something like that...?? On Tue, Jul 19, 2011 at 2:17 AM, Dumanshu duman...@gmail.com wrote: @Balaji: for third question, were u asked to write the code? On Jul 18, 10:04 pm, Balaji S balaji.ceg...@gmail.com wrote: wats the mistake.. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
