In “aa67bc54c9”, is there any way to print “aa” 67 times, “bc” 54 times and so on, using regular expressions?

Question

I was asked this question in an interview for an internship, and the first solution I suggested was to try and use a regular expression (I usually am a little stumped in int

Answer 1

how about:

while ($line =~ s/^([a-z]+)(\d+)//i)
{
    print $1 x $2;
}