Merge pull request #7 from rfaisal/dev-mac

Dev mac
Update README.markdown
arrays and strings separated
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rename of some of the files
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Merge branch 'dev-bluebat' of github.com:rfaisal/hellouniverse into dev-bluebat
linked list dir structures changed
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stack queue folder structure changed
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tree graph folder structure changed
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file operations folder changed
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bitwise operations new folder
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new folder for math
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