In Flight Entertainment

This a problem set for you to work through

This is a problem set. Some of these are easy, others are far more difficult. The purpose of these problems sets are:

1. to build your skill applying computational thinking to a problem
2. to assess your knowledge and skills of different programming practices

What is this problem set trying to do

In this problem set, we are thinking computationally

The Problem

I found this problem on interview cake, and use it with gratitude.

You've built an inflight entertainment system with on-demand movie streaming.

Users on longer flights like to start a second movie right when their first one ends, but they complain that the plane usually lands before they can see the ending. So you're building a feature for choosing two movies whose total runtimes will equal the exact flight length.

Write a function that takes an integer flight_length (in minutes) and a list of integers movie_lengths (in minutes) and returns a boolean indicating whether there are two numbers in movie_lengths whose sum equals flight_length.

When building your function:

1. Assume your users will watch exactly two movies
2. Don't make your users watch the same movie twice

The list of movies length in minutes:

#
# Movie length in minutes
#
movieLength = [110,150,159,180,100,145,185,90,93,98,102,122,120]

Unit Tests

• User Input: 600
• Expected output: True

• User Input: 90
• Expected output: False

• User Input: 120
• Expected output: False

Hacker edition

In the hacker version:

In addition to the output above, your program should calculate how many movies a user can watch on a very long flight.

How you will be assessed

Your solution will be graded using the following axis:

Scope

• To what extent does your code implement the features required by our specification?
• To what extent is there evidence of effort?

Correctness

• To what extent did your code meet specifications?
• To what extent did your code meet unit tests?
• To what extent is your code free of bugs?

Design

• To what extent is your code written well (i.e. clearly, efficiently, elegantly, and/or logically)?
• To what extent is your code eliminating repetition?
• To what extent is your code using functions appropriately?

Style

• To what extent is your code readable?
• To what extent is your code commented?
• To what extent are your variables well named?
• To what extent do you adhere to style guide?

A possible solution

Click the expand link to see one possible solution, but NOT before you have tried and failed!

not yet!

A natural number, a negative of a natural number, or zero.

Give a sequence of brief answers with no explanation.

Obtain a numerical answer showing the relevant stages in the working.

Consider the merits or otherwise of an argument or concept. Opinions and conclusions should be presented clearly and supported with appropriate evidence and sound argument.

Produce a plan, simulation or model.