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| Iteration is a pesky thing...it makes your algorithms slow. So what if I could | |
| calculate factorials without iteration? | |
| Save the following in a file, `chmod a+x` it and run like `./fact.pl 5` | |
| Just don't pass in negative numbers or you'll slowly use up system resources. |
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| #!/usr/bin/env perl | |
| $_ = shift and print $_*`$0 @{[$_-1]}`||1; |
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