Delve into Perl, a popular text processing language. Gain insights into loops, strings, and arrays, progressing to complex data structures and packages. No prior knowledge required.

alpine2.tar.gz

Perl is one of the most popular text processing languages in the world. It allows you to create extremely efficient text parsers for all sorts of applications.

This interactive course will help you get up to speed on Perl, starting off with basic concepts like loops, strings, and arrays. You'll build your way up to more complex topics like data structures and packages.

No background knowledge is needed. Anyone willing to understand the principles and syntax of Perl to use it in the future will find this course useful.

Learn Perl from Scratch

## Problem statement
Write code which **prints** half a **pyramid** of the *alphabet* **a**. 

* The code takes an **integer** variable `$rows` as **input** and *prints* the pyramid with that number of *rows* displaying `a`.

>**Hint**: Use `for` loops to *implement* the solution.

### Input
An integer.
### Output
Print the character `a` on the console.
### Sample input
`$rows` is equal to **5**.

### Sample output

>**Note:** In order to move values to next line you can use `\n`.

## Coding challenge
**Write your code below**. It is recommended that you try solving the exercise yourself before viewing the solution.

**Good Luck!**

#the $rows variable contains the number of rows that you need to print 

#write the code for making and printing the pyramid here
#use can use \n to move numers to next line in the pyramid
#use " " to add space between numbers in pyramid

 print"\n"; #comment out this line when you start writing code


package Test;

sub test {
$rows = @_[0];


for($i = 1; $i <= $rows; $i++) {
  for($j = 1; $j <= $i; $j++)
  {
    print "a ";
  }
  print "\n";
}

Challenge

# Problem statement
Write code which **prints** half a **pyramid** of the *alphabet* **a**. 

* The code takes an **integer** variable `$rows` as **input** and *prints* the pyramid with that number of *rows* displaying `a`.

>**Hint**: Use `for` loops to *implement* the solution.

## Input
An integer.
## Output
Print the character `a` on the console.
## Sample input
`$rows` is equal to **5**.

## Sample output

# Coding challenge
**Write your code below**. It is recommended that you try solving the exercise yourself before viewing the solution.

**Good Luck!**

# Problem statement
Write code which **prints** half a **pyramid** of the *alphabet* **a**. 

* The code takes an **integer** variable `＄rows` as **input** and *prints* the pyramid with that number of *rows* displaying `a`.

>**Hint**: Use `for` loops to *implement* the solution.

## Input
An integer.
## Output
Print the character `a` on the console.
## Sample input
`＄rows` is equal to **5**.

## Sample output

Test your understanding of loops by printing a half pyramid for a given number of rows in this lesson.

Getting Started

Variables

Operators

Conditional Statements

Loops

Subroutines

Strings

Arrays

Packages

Conclusion

Challenge 3: Printing Pyramid

Problem statement

Input

Output

Sample input

Sample output

Coding challenge