li269's submissions for 1180 级数求和

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li269
on March 15, 2009, 1:45 p.m.
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AC | PERL
li269
on March 15, 2009, 1:43 p.m.
0.00s
468.00 KB
li269
on March 15, 2009, 1:42 p.m.
0.00s
468.00 KB
li269
on March 15, 2009, 11:25 a.m.
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468.00 KB
li269
on March 15, 2009, 11:23 a.m.
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468.00 KB