Simple to understand solution - #3

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mvoong wants to merge 3 commits into

SwiftLondon:masterfrom

mvoong:master

Commits on Mar 24, 2016

V commit
Maciej Matyjas
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Commits on Mar 25, 2016

Simple to understand implementation
mvoong
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4dfe775

Commits on Mar 31, 2016

Transitive case and tests
mvoong
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