How to resolve the algorithm Descending primes step by step in the Perl programming language

Published on 12 May 2024 09:40 PM

How to resolve the algorithm Descending primes step by step in the Perl programming language

Table of Contents

Problem Statement

Generate and show all primes with strictly descending decimal digits.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Descending primes step by step in the Perl programming language

Source code in the perl programming language

use strict;
use warnings;
use ntheory 'is_prime';

print join( '',
        sort
        map { sprintf '%9d', $_ }
        grep /./ && is_prime $_,
        glob join '', map "{$_,}", reverse 1..9
      ) =~ s/.{45}\K/\n/gr;


  

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