#1 - The Role of Algorithms in Computing

(I am not accountable for mistakes in the calculations since it's past 2am :laughing:)

PS1: see the [README](https://github.com/rmascarenhas/ita#introduction-to-algorithms)
PS2: get used to LATEX.
PS3: I'm pasting the compiled version here, but you should only see it after you open your own pull request.

/cc @fabioyamate @andrielfn @laurocaetano

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![exercises1](https://cloud.githubusercontent.com/assets/613784/3560714/8c5be0ae-0985-11e4-85c8-f01126642343.png)
![exercises2](https://cloud.githubusercontent.com/assets/613784/3560715/8dfccfea-0985-11e4-99b8-970e23abbcbb.png)
![exercises3](https://cloud.githubusercontent.com/assets/613784/3560716/8f6fd174-0985-11e4-9bd8-3e087940ef9d.png)

![runtime_comparison1](https://cloud.githubusercontent.com/assets/613784/3565528/519179c2-0abe-11e4-8e40-da0dc70e175f.png)

this one was hard to answer, because I couldn't understand what the question wants.

Some people answered problems related to math and algorithms. But some questioned that the chapter is not yet going to this path. Some answered that the "best solution" are critical problem like medical ones, while "approximately" non-critical ones.