i'm pretty sure my answer for 112 is correct, but apparently it's not. anybody see anything wrong with this? it works fine for the two examples (.5->538, .9->21780). 
my $max    = .99;
my $bouncy = 0;

for (my $n=1; ; $n++)
{
  my ($inc, $dec) = (0, 0);

  my @d = split //, $n;
  for (my $i=0; $i<@d-1; $i++)
  {
    if    ($d[$i] < $d[$i+1]) { $inc++ }
    elsif ($d[$i] > $d[$i+1]) { $dec++ }
  }
  $bouncy++ if $inc and $dec;

  next if $max > $bouncy/$n;  
  printf "n=%d: %%%f\n", $n, $bouncy/$n;   
  last;
}

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In reply to Re: Project Euler (a series of challenging mathematical/computer programming problems) by Anonymous Monk
in thread Project Euler (a series of challenging mathematical/computer programming problems) by BioGeek

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