How to create a Set of Numbers from 1 to N in Perl - Step by Step Examples

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How to create a Set of Numbers from 1 to N in Perl ?

Answer

To create a set of numbers from 1 to N in Perl, you can use a hash where the keys represent the numbers.

✐ Examples

1 Create Set of Numbers from 1 to 5

In this example,

We initialize an empty hash named %numberSet.
We use a for loop to iterate from 1 to 5 (inclusive).
Inside the loop, we set the value of each number as 1 in the hash.
The resulting hash contains keys for numbers from 1 to 5.

Perl Program

use strict;
use warnings;

my %numberSet;

for my $i (1..5) {
	$numberSet{$i} = 1;
}

print "Set of numbers from 1 to 5:", join(", ", keys %numberSet), "\n";

Output

Set of numbers from 1 to 5: 1, 2, 3, 4, 5

2 Create Set of Numbers from 1 to 10

In this example,

We initialize an empty hash named %numberSet.
We use a for loop to iterate from 1 to 10 (inclusive).
Inside the loop, we set the value of each number as 1 in the hash.
The resulting hash contains keys for numbers from 1 to 10.

Perl Program

use strict;
use warnings;

my %numberSet;

for my $i (1..10) {
	$numberSet{$i} = 1;
}

print "Set of numbers from 1 to 10:", join(", ", keys %numberSet), "\n";

Output

Set of numbers from 1 to 10: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

Summary

In this tutorial, we learned How to create a Set of Numbers from 1 to N in Perl language with well detailed examples.

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