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Merge branch 'sample' of https://github.com/JaeKyungLee/just.do.it into sample

# By JaeKyung, Lee (23) and Jae-Kyung, Lee (1)
* 'sample' of https://github.com/JaeKyungLee/just.do.it: (24 commits)
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  reset
  weird of algospot.
  URI encoding of algospot tutorial.
  drawrect
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  Encrypt tutorial question of algospot.com.
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Conflicts:
	.gitignore
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