Re^2: Find last position of an element in array


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by hippo (Bishop)

on Mar 30, 2022 at 09:49 UTC ( [id://11142534]=note: print w/replies, xml )

Need Help??

You can avoid the maths with rindex:

$ perl -le '
my @arr = (1,1,1,2,2,2,2,2,3,3,3,4,4,4,4,4,4,5,5,6);
print rindex( join (q{}, @arr), 4 );  
'
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