ckq1's submissions for 1180 级数求和

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ckq1
on April 13, 2008, 1:51 p.m.
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152.00 KB
ckq1
on April 11, 2008, 10:40 p.m.
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152.00 KB
ckq1
on April 11, 2008, 10:36 p.m.
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152.00 KB
ckq1
on April 11, 2008, 10:28 p.m.
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152.00 KB
ckq1
on April 11, 2008, 9:40 p.m.
0.00s
152.00 KB