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# Nucleotide Count Given a single stranded DNA string, compute how many times each nucleotide occurs in the string. The genetic language of every living thing on the planet is DNA. DNA is a large molecule that is built from an extremely long sequence of individual elements called nucleotides. 4 types exist in DNA and these differ only slightly and can be represented as the following symbols: 'A' for adenine, 'C' for cytosine, 'G' for guanine, and 'T' thymine. Here is an analogy: - twigs are to birds nests as - nucleotides are to DNA as - legos are to lego houses as - words are to sentences as... ## Setup 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 `objc` as a test runner utility. Both are described in more detail here: http://exercism.io/languages/objective-c ### Submitting Exercises 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: ```shell exercism submit <path-to-exercism-workspace>/objective-c/nucleotide-count/NucleotideCount.m ``` You can find the Exercism workspace by running `exercism debug` and looking for the line beginning with Workspace. ## Source The Calculating DNA Nucleotides_problem at Rosalind [http://rosalind.info/problems/dna/](http://rosalind.info/problems/dna/) ## Submitting Incomplete Solutions It's possible to submit an incomplete solution so you can see how others have completed the exercise.
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75 entries across 75 versions & 1 rubygems