a201226100112's submissions for 1174 1!到n!的和

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AC | PERL
a201226100112
on Oct. 17, 2012, 8:26 a.m.
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464.00 KB
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IR | C
a201226100112
on Oct. 17, 2012, 8:14 a.m.
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IR | C
a201226100112
on Oct. 17, 2012, 8:13 a.m.
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