may's submissions for 1182 母牛问题

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AC | C
may
on June 24, 2009, 7:29 p.m.
0.01s
152.00 KB
may
on June 24, 2009, 7:27 p.m.
0.01s
152.00 KB
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AC | C
may
on June 24, 2009, 7:03 p.m.
0.25s
152.00 KB