@Bhavesh:
Counter case for you:
array = {68, 6867}
u change this array to: {6866, 6867}
then u sort them to get 6867, 6866 and then give the ans as: 686768. While
the correct ans is: 686867
The problem in ur algo is in appending the first digit at the end of each
number. For a correct algo, not just the first digit but the complete number
should be appended.
Hence, to get correct result, you should change the array to : {6868, 6867}.
Hope this makes things clear for you.
Cheers
Nikhil Jindal
http://sites.google.com/site/aboutnikhiljindal/
On Mon, May 30, 2011 at 3:28 PM, Bhavesh agrawal <agr.bhav...@gmail.com>wrote:
> solution may be
>
>
> array ={ 3 ,21 ,9 ,93,17 ,178 ,1,101} (i think i have covered all
> exceptions )
>
> then ,change this array like 33333 , 21222, 99999, 93999, 17111, 17811,
> 11111 , 10111 ( make each number of 5 digit with rest digits same as Ist
> digit )
> then sort this array
>
> 99999, 93999,33333 21222, 17811,17111, 11111, 10111
> and make it with actual numbers
>
> 9,93,3,21,178,17,1,101 = 993321178171101
>
> plz let me know if any case left...
>
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