Code ?

On Thu, Jun 5, 2014 at 7:08 PM, kumar raja <[email protected]> wrote:

> U have two dimensions for the table ( has O(n^2) entries.) and to check
> whether string is palindrome or not it will take O(n) . So it is O(n^3)
> solution.
>
> I have checked it manually for some inputs, and it works.
>
>
> On 5 June 2014 18:53, Shashwat Anand <[email protected]> wrote:
>
>> I am not too sure about your O (N^3) solution even.  Can you link the
>> working code ?
>>
>>
>> On Thu, Jun 5, 2014 at 6:48 PM, kumar raja <[email protected]>
>> wrote:
>>
>>> This is a very good collection of DP problems.
>>>
>>> I want the answers for problem 2(e)
>>> and problem 14.
>>>
>>> for problem 14 the recurrence relation
>>> that i have is
>>>
>>> T[i,j] = 0 if i>=j
>>>            1 if j=i+1 and s[i]=s[j]
>>>            0 if j=i+1 and s[i]!=s[j]
>>>            j-i+1/2 if s[i..j] is even length palindrome
>>>            j-i/2      if s[i..j] is odd length palindrome
>>>            max{T[i+1,j],T[i,j-1]} else
>>>
>>> But this is O(n^3) solution. Could not
>>> find out solution of order O(n^2).
>>> If someone knows please share the answers for them.
>>>
>>>
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