lge's submissions for 1042 求等差数列的和

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lge
on Oct. 31, 2013, 11:48 p.m.
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lge
on Oct. 31, 2013, 11:45 p.m.
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lge
on Oct. 31, 2013, 11:44 p.m.
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164.00 KB
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AC | C
lge
on Dec. 4, 2012, 7:52 p.m.
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160.00 KB