@dave..Can you please explain your logic ..
Regards,
Ashish
On Thu, Feb 24, 2011 at 6:32 AM, Dave <[email protected]> wrote:
> Try this:
>
> int i,k,n;
> long long j,nsq;
> for( n = 31623 ; n < 100000 ; ++n )
> {
> nsq = (long long)n * (long long)n;
> j = nsq;
> k = 0;
> for( i = 0 ; i < 10; ++i )
> {
> k |= (1 << (j % 10));
> j /= 10;
> }
> if( k == 01777 )
> printf("%i %lli\n",n,nsq);
> }
>
> It finds 76 answers in the blink of an eye, the first being 32043^2
> and the last being 99066^2.
>
> Dave
>
> On Feb 22, 3:17 pm, bittu <[email protected]> wrote:
> > How to find a number of 10 digits (non repeated digits) which is a
> > perfect square? perfect square examples: 9 (3x3) 16 (4x4) 25(5x) etc.
> > Ten digit number example 1,234,567,890
> >
> > Thanks & Regards
> > Shashank
>
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