プログラミングのお題スレ Part12

>>644
for (<DATA>) {
($X, $y) = split;
$x = $m = $X % $y;
my ($n, %h);
$h{$x} = 1;
while(1) {
$x = 10 * $x % $y;
$n++;
last if $h{$x};
$h{$x} = 1;
}
print "$X/$y => ", ($x ? $n : $x), "\n";
}
__DATA__
1234 555


Perl 5.20.3 32 bit, integer 64bit
$ perl.exe 12_628.pl
1234/555 => 4
0.266 secs

Perl 5.16.3 32 bit, integer 32bit
$ perl 12_628.pl
1234/555 => 4