# to loop through the array, I found it usefull to increment my count 
+var ($i) by two
# here, scalar(@List), returns the number of elements in the array.

for(my $i=0;$i < scalar(@List);$i+=2){

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Why increment by two?

In reply to Re^2: subtractionn in an array by Lotus1
in thread subtractionn in an array by brachysclereid

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