Ruby Solution for 1d array. The logic for 2d array remains same.

a=[1,2,3,4,5,1]
b=[]
for m in a
  unless b.include?(m)
    b<<m
  else
    puts m
    break
  end
end

On 19 July 2011 01:05, Saket Choudhary <sake...@gmail.com> wrote:

> Have a hash Table. Read the elements and push it to the hash table. If it
> alraedy exists you are done.
>
>
> On 19 July 2011 01:02, Shubham Maheshwari <shubham.veloc...@gmail.com>wrote:
>
>> what would be the O(n^2) sol. to this ...!!
>>
>>
>> On Tue, Jul 19, 2011 at 12:41 AM, snehi jain <snehijai...@gmail.com>wrote:
>>
>>> can it be solved in less than O(n^2) like O(nlogn ) types..
>>> i cant figure out any solution less than O(n^2).
>>>
>>>
>>> On Tue, Jul 19, 2011 at 12:37 AM, ankit sambyal 
>>> <ankitsamb...@gmail.com>wrote:
>>>
>>>> @Snehi :If the elements are random, then it seems that this problem
>>>> can't be solved in O(n) time
>>>>
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>>
>>
>>
>> --
>> Shubham Maheshwari
>> ShubZz
>> O.o o.O
>>
>> enJoY ...!!!
>>
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>
>

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