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use List::Util qw( shuffle ); ... $dataArray[$_*2+1] } shuffle 0 .. @dataArray/2-1;
my @dataArray = ( [ \@inputValue1, \@outputValue1 ], [ \@inputValue2, \@outputValue2 ], ... );
use List::Util qw( shuffle ); my @jumpedArray = map { $dataArray[$_] } shuffle 0 .. $#dataArray;