- 673 名前：デフォルトの名無しさん mailto:sage [2018/11/22(木) 00:47:46.57 ID:YC9N9M8Q.net]
- >>632 >>634 Perl5
for (<DATA>) {
($X, $y) = split;
$x = $m = $X % $y;
my ($n, %h);
$h{$x} = $n++;
while(1) {
$x = 10 * $x % $y;
last if $h{$x};
$h{$x} = $n++;
}
print "$X/$y => ", ($x ? $n-$h{$x} : $x), "\n";
}
__DATA__
1 3
10 2
988027 983
919 870473
1223 1476221
99998360006603 9999901
123412345 999999999
1234 555
実行
$ perl 12_628.pl
1/3 => 1
10/2 => 0
988027/983 => 982
919/870473 => 54288
1223/1476221 => 122816
99998360006603/9999901 => 1999980
123412345/999999999 => 9
1234/555 => 3
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