jintianshiqie's submissions for 1174 1!到n!的和

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jintianshiqie
on Nov. 8, 2010, 3:53 p.m.
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AC | C
jintianshiqie
on Oct. 9, 2010, 11:16 a.m.
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164.00 KB
jintianshiqie
on Oct. 9, 2010, 11:05 a.m.
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164.00 KB
jintianshiqie
on Oct. 9, 2010, 10:51 a.m.
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164.00 KB