柴磊's submissions for 1550 等比数列求和

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柴磊
on May 16, 2010, 3:38 p.m.
0.11s
164.00 KB
柴磊
on May 16, 2010, 3:27 p.m.
0.70s
164.00 KB
柴磊
on May 16, 2010, 2:51 p.m.
0.09s
164.00 KB