19920911's submissions for 1600 函数序列和

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19920911
on Nov. 17, 2010, 8:35 p.m.
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AC | C
19920911
on Nov. 17, 2010, 8:35 p.m.
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164.00 KB
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19920911
on Nov. 17, 2010, 8:34 p.m.
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