use a hash map
On Mon, Jun 14, 2010 at 12:14 AM, jalaj jaiswal
<[email protected]>wrote:
> give an algo to find a unique number in an array
>
> for eg a[]={1,3,4,1,4,5,6,1,5}
>
> here 3 is the unique number as it occur only once... moreover array
> contains only 1 unique number
>
>
>
> --
> With Regards,
> Jalaj Jaiswal
> +919026283397
> B.TECH IT
> IIIT ALLAHABAD
>
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