Re: [algogeeks] MS Question

2012-01-12 Thread Supraja Jayakumar
Hi

Normal string will not work I think. Because it is avriable length encoding
scheme.

On Fri, Jan 13, 2012 at 11:11 AM, b.kisha...@gmail.com  wrote:

> Is there anything called in-place reversal ??
> UTF-8 is only encoding similar to ASCII but with a huge charecter set.
> So normal string reversal would work fine..
>
>
>
> On Thu, Jan 12, 2012 at 2:02 AM, Ankur Garg  wrote:
>
>> How to do this
>>
>> Write a function to reverse a UTF-8 encoded string in-place ??
>>
>>
>>
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Re: [algogeeks] MS Question

2012-01-12 Thread b.kisha...@gmail.com
Is there anything called in-place reversal ??
UTF-8 is only encoding similar to ASCII but with a huge charecter set.
So normal string reversal would work fine..


On Thu, Jan 12, 2012 at 2:02 AM, Ankur Garg  wrote:

> How to do this
>
> Write a function to reverse a UTF-8 encoded string in-place ??
>
>
>
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Re: [algogeeks] Re: finding subarray

2012-01-12 Thread surender sanke
maintaining cumulative sums of left side of array from index i in in hash,
and maintaining  variable for right cumulative sums at each j ( j=i+1 till
n-1) and check at each value on hash
will solve in O(n^2), let me know if im wrong..

surender

On Wed, Jan 11, 2012 at 9:12 PM, sravanreddy001 wrote:

> @Lucifer: a very good counter example involving the -ve numbers..[:)]
> I never thought of negative numbers while looking for solution.
>
> And I don't see a O(N) solution for this -->
> 1) Find the first pair (i,j) such that:
> sum( A[0] .. till A[i]) = sum(B[0] ... B[i])  -- ESP when there
> are -ve numbers, If No negative numbers its same as one provided before.
>
> And, sorting the sums & comparing them like you suggested leads us to
> O(n^2 log n)
>
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Re: [algogeeks] Re: sort 2D array

2012-01-12 Thread pankajsingh
@prakash...ya i realized that and it will be sorted row and column
wise.which will become same as forming min-heapand my algo will
become same what lucifer had already specified...

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