Creating implementation for idiom 255 : Print a set

Idiom

# 255 Print a set

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Print the values of the set x to the standard output.
The order of the elements is irrelevant and is not required to remain the same next time.

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using System;

foreach (var el in x)
{
    Console.WriteLine(el);
}

using System;

Console.WriteLine(string.Join(Environment.NewLine, x));

print(x);

import "fmt"

for _, v := range x {
	fmt.Println(v)
}

print x

console.log(x);

System.out.println(x);

echo $x;

for el in x do writeln(el);

print "$_\n" for @x;

print(x)

puts x

use std::collections::HashSet;

println!("{:?}", x);