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https://github.com/kitlangton/practice-problems


https://github.com/kitlangton/practice-problems

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README 

        
If you haven't already done so, follow [these instructions][setup] to setup a

web based ruby development environment. Once installed you will be able to run

all of the practice problems from there.



**Note**: These practice problems will not be found on codeacademy - you

**must** setup the web based ruby development environment.



[setup]: ../../coding-test-1/setup.md



# Practice Problems II

We recommend that you continue to use the Cloud9 development

environment. See these [setup instructions][c9-setup].



[c9-setup]: ../../coding-test-1/setup.md



Alternatively, you might prefer to setup Ruby on your own computer. If

you choose to do so, you can download this whole prep-work repository,

including the practice problems, in [ZIP format][repo-zip].



These practice problems are meant to be written, and run through the

web based development environment. Please see the following instructions to get

started.



[repo-zip]: https://github.com/appacademy/prep-work/archive/master.zip



## Practice Problem Instructions



First, open a terminal at the

 `prep-work/coding-test-2/practice-problems` directory. If you are using

Cloud9, the easiest way to do this is to right-click on that directory

in the file tree and select "Open Terminal Here". Run `bundle install`.

This will install the Ruby libraries needed to run the specs.



You can then run the specs for an individual problem like so:



    bundle exec rspec spec/00_nearest_larger_spec.rb



The instructions for the practice problems are written inside the spec

files (in the `spec` directory); check those for instructions on what

you are supposed to do.



You will write your code in the corresponding files in `lib` (e.g.,

`lib/00_nearest_larger.rb`). I've filled them out with a blank method

for you. You'll need to write the code to make the specs pass. In

Cloud9, you'll probably want to keep one text editor panel open to write

your code, and a terminal panel open to run the specs and read the

specs' output.



Work through the problems one by one; when you complete writing the

code, run the spec to check your work. Make sure to look at the

results it returns; look at which individual tests fail and then start

to figure out why.



My advice is to solve them all once, then put your solutions away and

solve them all again a day later. You should build a good, intuitive

grasp of the techniques needed to solve these problems.



**I've included solutions**, but you shouldn't look at those until you

finish a problem (or get stuck).