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Re^3: Golf for unique digits (17)by BrowserUk (Pope)
|on Jan 09, 2013 at 18:52 UTC||Need Help??|
tye++ ... but I'm stuck to understand how it works?
According to perlop:
Searches a string for a pattern, and if found, replaces that pattern with the replacement text and returns the number of substitutions made.
How does the number of substitutions made equate to the number of characters left after the substitutions?
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