Space Age in Objective-C
Given an age in seconds, calculate how old someone is in terms of a given planet's solar years.
exercism fetch objective-c space-age
Given an age in seconds, calculate how old someone would be on:
- Earth: orbital period 365.25 Earth days, or 31557600 seconds
- Mercury: orbital period 0.2408467 Earth years
- Venus: orbital period 0.61519726 Earth years
- Mars: orbital period 1.8808158 Earth years
- Jupiter: orbital period 11.862615 Earth years
- Saturn: orbital period 29.447498 Earth years
- Uranus: orbital period 84.016846 Earth years
- Neptune: orbital period 164.79132 Earth years
So if you were told someone were 1,000,000,000 seconds old, you should be able to say that they're 31.69 Earth-years old.
If you're wondering why Pluto didn't make the cut, go watch this youtube video.
There are two different methods of getting set up to run the tests with Objective-C:
- Create an Xcode project with a test target which will run the tests.
- Use the ruby gem
objcas a test runner utility.
Both are described in more detail here: http://exercism.io/languages/objective-c
When submitting an exercise, make sure your solution file is in the same directory as the test code.
The submit command will look something like:
exercism submit <path-to-exercism-workspace>/objective-c/space-age/SpaceAge.m
You can find the Exercism workspace by running
exercism debug and looking for the line beginning
Partially inspired by Chapter 1 in Chris Pine's online Learn to Program tutorial. http://pine.fm/LearnToProgram/?Chapter=01
Submitting Incomplete Solutions
It's possible to submit an incomplete solution so you can see how others have completed the exercise.