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187 lines
4.1 KiB
187 lines
4.1 KiB
<!---
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This assignment was developed by Brandi
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Questions? Comments?
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1. Log an issue to this repo to alert me of a problem.
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2. Suggest an edit yourself by forking this repo, making edits, and submitting a pull request with your changes back to our master branch.
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3. Hit me up on Slack @brandib
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--->
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##  {.separator}
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<h1>Python Basics: Variables and Local Python Files</h1>
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---
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## Overview
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So, you've just installed Python! Let's put your skills to the test!
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You will practice these programming concepts we've covered in class:
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* Declaring and using variables
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* Using mathematical operators
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* Running local `.py` files from your terminal
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---
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## Deliverables
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For the challenges below, you will create a new `.py` file and write code to solve the problem. In this case, you will create `solution.py` for your solution code to the problem. Run the file from the command line to check your work. Detailed directions are given below
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*Reminder: On your laptop, you can run the file from your command line with the following command:*
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```python
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python solution.py
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```
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> **Hint**: Make sure you are printing something out with the print statement! Otherwise, you won't see any output from running your program!
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## Requirements:
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* By the end of this, you should have a `.py` file for the solution
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* We know you're just starting out, so there is just one challenge problem!
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---
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## Problem: Decoding R2D2
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You have a robot who communicates in a series of beeps and boops. You usually get the gist of what he means, but just once it would be nice to know what's really on his mind! You've noticed a pattern in the beeps and boops, and it seems like the number of beeps and boops correspond to specific letters.
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**Example Code**
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```python
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beeps = 2
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boops = 6
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total = beeps + boops
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print(total) # prints 8
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```
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---
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## Problem: Decoding R2D2
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You got a result of `8`. Now, look that up in the corresponding key-value chart:
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| Code | Letter | Code | Letter |
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| ------ | ------ | ------ | ------ |
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| 1 | A | 14 | N |
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| 2 | B | 15 | O |
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| 3 | C | 16 | P |
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| 4 | D | 17 | Q |
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| 5 | E | 18 | R |
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| 6 | F | 19 | S |
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| 7 | G | 20 | T |
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| 8 | H | 21 | U |
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| 9 | I | 22 | V |
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| 10 | J | 23 | W |
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| 11 | K | 24 | X |
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| 12 | L | 25 | Y |
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| 13 | M | 26 | Z |
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---
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## Problem: Decoding R2D2
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So, according to the chart, the first letter is `H`! It's your job to figure out the rest of the message! Here is the full list of inputs you've got written down.
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```
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2 beeps, 6 boops
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0 beeps, 5 boops
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9 beeps, 3 boops
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4 beeps, 8 boops
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10 beeps, 5 boops
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BOP! (pretty sure this is a space!)
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11 beeps, 12 boops
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5 beeps, 5 boops
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1 beep, 17 boops
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5 beeps, 7 boops
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4 beeps, 0 boops
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```
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---
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## Problem: Decoding R2D2
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In a separate file, print out the numerical total for each beep-boop combo as we did above. In a comment, write the letter that the number corresponds to.
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**Example Code**
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```python
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# H
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beeps = 2
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boops = 6
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total = beeps + boops
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print(total)
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```
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---
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## Problem: Decoding R2D2
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**Expected Output**
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```
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8
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5
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12
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12
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15
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23
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10
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18
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12
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4
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```
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---
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## Problem: Decoding R2D2
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Run it!
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1. Create a new file called `solution.py`.
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2. Open `solution.py` in `Atom`.
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3. Write your code - solve the problem! Remember to hit `save`!
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4. Open your Terminal.
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> **Protip**: Consult the class notes if you have forgotten how to do this!
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5. Navigate to the correct location in your file system
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> **Protip**: You may need to use the `cd` command to navigate to the location you have saved `solution.py` at. `cd ..` navigates to the parent folder of the one you're currently in.
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---
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## Problem: Decoding R2D2
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6. Type the following command:
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**Mac/Linux**
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```bash
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python solution.py
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```
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**Windows**
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```bash
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py solution.py
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```
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7. Until you get the expected output, you can make changes to your code and run it again to see if you have the answer. Repeat as needed!
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---
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## Yay! All done!
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Now, if you want to know a little more about why that particular message was chosen, [read up here](https://blog.hackerrank.com/the-history-of-hello-world/)!
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