放飞's submissions for 1175 等比数列

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放飞
on March 26, 2008, 6:42 p.m.
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152.00 KB
放飞
on March 26, 2008, 6:41 p.m.
0.00s
152.00 KB
放飞
on March 25, 2008, 8:08 p.m.
0.02s
152.00 KB