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

Published on 12 May 2024 09:40 PM
#Wren

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

Source code in the wren programming language

import "./perm" for Powerset
import "./math" for Int
import "./seq" for Lst
import "./fmt" for Fmt

var ps = Powerset.list((9..1).toList)
var descPrimes = ps.skip(1).map { |s| Num.fromString(s.join()) }
                           .where { |p| Int.isPrime(p) }
                           .toList
                           .sort()
System.print("There are %(descPrimes.count) descending primes, namely:")
Fmt.tprint("$8s", descPrimes, 10)

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