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Coin Counter - Perl Typing CST Test

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Coin Counter — Perl Code

Counts coins collected and lost.

my $coins = 0;

sub updateUI { my ($coins) = @_; print "Coins: $coins\n"; }
sub collectCoin { $coins++; updateUI($coins); }
sub loseCoin { $coins--; updateUI($coins); }

# Simulate actions
updateUI($coins);
collectCoin();
collectCoin();
loseCoin();

Perl Language Guide

Perl is a high-level, general-purpose programming language known for its text processing capabilities, flexibility, and rich library ecosystem. It is widely used for system administration, web development, network programming, and bioinformatics.

Primary Use Cases

  • ▸Text and log file parsing
  • ▸System administration scripts
  • ▸Web CGI scripts and backend processing
  • ▸Bioinformatics and data analysis
  • ▸Network programming and automation

Notable Features

  • ▸Dynamic typing and context-sensitive behavior
  • ▸Powerful regular expression engine
  • ▸Extensive standard library and CPAN modules
  • ▸Flexible syntax allowing multiple ways to accomplish tasks
  • ▸Strong string and list processing capabilities

Origin & Creator

Created by Larry Wall in 1987, Perl was initially designed for report processing and Unix system administration tasks.

Industrial Note

Perl is specialized for text-heavy automation, scripting, and rapid prototyping, rather than modern web frontend or mobile development.

More Perl Typing Exercises

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