Re: merging two arrays with OR operation

by Random_Walk (Prior)
 on Mar 06, 2019 at 11:10 UTC ( #1230956=note: print w/replies, xml ) Need Help??

in reply to merging two arrays with OR operation

Here is a fun little one with map :) Just for fun, anything above is a 'better' way to do it

```use strict;
use warnings;

my @array1 = (0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1);
my @array2 = (0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1);
print "@array1\n";
print "@array2\n";

my \$i;
my @result= map {\$_ += \$array2[\$i++];int(\$_/2 +.6)} @array1;

print "@result\n";

Update

WARNING Lookout though, it messes with the content of array 1
```# Here is a version that will not break array 1
use strict;
use warnings;

my @array1 = (0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1);
my @array2 = (0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1);
print "@array1\n";
print "@array2\n";

my \$i;
my @result= map {int( (\$_+\$array2[\$i++])/2 +.6)} @array1;

print "@result\n";

Cheers,
R.

Pereant, qui ante nos nostra dixerunt!

Replies are listed 'Best First'.
Re^2: merging two arrays with OR operation
by rsFalse (Hermit) on Mar 06, 2019 at 12:57 UTC
Same, but with another one variant inside the map, using shift-right op (Shift Operators):
```my @result = map { \$_ + \$array2[ \$i++ ] + 1 >> 1 } @array1;

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