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 a subroutine `sum` that takes two integer parameters and returns their sum.

### Input
Two numbers.

### Output
Sum of the two numbers.

### Sample input
```
4, 5
```

### Sample output
```
9
```

## Coding exercise
Write your code in the code widget below. If you don't get it right, don't fret; the solution is also given.

# Problem statement
Write a subroutine `sum` that takes two integer parameters and returns their sum.

## Input
Two numbers.

## Output
Sum of the two numbers.

## Sample input
```
4, 5
```

## Sample output
```
9
```

# Coding exercise
Write your code in the code widget below. If you don't get it right, don't fret; the solution is also given.

Test your knowledge by writing a subroutine to calculate the sum of two numbers.

Getting Started

Variables

Operators

Conditional Statements

Loops

Subroutines

Strings

Arrays

Packages

Conclusion

Challenge 1: Sum of Two Numbers

Problem statement

Input

Output

Sample input

Sample output

Coding exercise