tiantian's submissions for 1189 杨辉三角形

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tiantian
on July 15, 2008, 6:53 p.m.
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468.00 KB
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tiantian
on July 15, 2008, 6:34 p.m.
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tiantian
on July 15, 2008, 6:33 p.m.
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tiantian
on July 15, 2008, 6:22 p.m.
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468.00 KB
tiantian
on July 5, 2008, 10:39 p.m.
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468.00 KB
tiantian
on July 5, 2008, 10:38 p.m.
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468.00 KB