(In reply to A devilish problem (spoiler)
by Steve Herman)
Although we sometimes see "No leading zeroes" framed within a problem it is quite obvious that that phrase is implicit anyway.
That said, and Steve never actually tested it, I can confirm from a computer program that D <> 0 anyway.
I built a spreadsheet "calculator" and worked around much of what Steve has presented. Having become frustrated I resorted to a computer program which I carelessly did not save. Simple as it was I'm not about to recreate it. Suffice to say that it did yield a unique result.
Posted by brianjn
on 2013-06-07 03:02:16