@Saurabh There is no biggest number in an infinite array [?]

On 25 October 2011 09:07, saurabh singh <saurab...@gmail.com> wrote:

> suppose the element doesn't lies in the array and is bigger than the
> biggest number........:D
> everything  will fail.......
>
>
> On Mon, Oct 24, 2011 at 9:43 PM, ravindra patel 
> <ravindra.it...@gmail.com>wrote:
>
>> using power of 2 approach doubles the scope of search each time.
>> How about using approximation. Say I have lower bound lb and upper bound
>> ub. Now -
>>
>> initially lb = 0, ub = 1;
>>
>> while (a[ub] < k)
>> {
>>     lb = ub;
>>     ub = (ub*k) / a[ub];
>> }
>>
>> after end of this loop we'll have a lower bound and upper which should
>> provide a narrow scope.
>>
>> Feedback welcome :-),
>> - Ravindra
>>
>> On Mon, Oct 24, 2011 at 7:09 PM, Bittu Sarkar <bittu...@gmail.com> wrote:
>>
>>> @Ankur Don't think there's any major reason for using powers of 2 except
>>> the fact that computing the powers of 2 can be done very efficiently than
>>> computing the powers of any other number. Complexity in any case remains the
>>> same.
>>>
>>>
>>> On 24 October 2011 10:29, rahul sharma <rahul23111...@gmail.com> wrote:
>>>
>>>> +1 ankur
>>>>
>>>>
>>>> On Mon, Oct 24, 2011 at 1:26 AM, Ankur Garg <ankurga...@gmail.com>wrote:
>>>>
>>>>> Use Binary Search
>>>>>
>>>>> start = 2^n-1 high =2^n where n=0,1....
>>>>>
>>>>> On Mon, Oct 24, 2011 at 12:28 AM, sunny agrawal <
>>>>> sunny816.i...@gmail.com> wrote:
>>>>>
>>>>>> hint 1: try to find 2 indexes i, j such that a[i] <= K <= a[j]
>>>>>>
>>>>>>
>>>>>> On Sun, Oct 23, 2011 at 11:23 PM, Ankuj Gupta <ankuj2...@gmail.com>wrote:
>>>>>>
>>>>>>> Given a sorted array of Infinite size, find an element ‘K’ in the
>>>>>>> array without using extra memory in O (lgn) time
>>>>>>>
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>>>>>>
>>>>>>
>>>>>> --
>>>>>> Sunny Aggrawal
>>>>>> B.Tech. V year,CSI
>>>>>> Indian Institute Of Technology,Roorkee
>>>>>>
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>>>
>>>
>>>
>>> --
>>> Bittu Sarkar
>>> 5th Year Dual Degree Student
>>> Department of Computer Science & Engineering
>>> Indian Institute of Technology Kharagpur
>>>
>>>
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>
>
>
> --
> Saurabh Singh
> B.Tech (Computer Science)
> MNNIT ALLAHABAD
>
>
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-- 
Bittu Sarkar
5th Year Dual Degree Student
Department of Computer Science & Engineering
Indian Institute of Technology Kharagpur

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