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Re^2: Abusing Map (Corrected second code block)

by ikegami (Patriarch)
on May 18, 2018 at 08:11 UTC ( [id://1214819]=note: print w/replies, xml ) Need Help??

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  1. or download this
    my @b;
$b[ $_-1 ] = $a[ $_-1 ] - $a[ $_ ] for 1 .. $#a;
  2. or download this
    my @b;
$b[ $_ ] = $a[ $_ ] - $a[ $_+1 ] for 0 .. $#a-1;
  3. or download this
    my @b = @a;
$b[ $_ ] -= $b[ $_+1 ] for 0 .. $#b-1;
pop @b;

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