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做此题我快崩溃了，还好AC了，贴几个让我发现错误的数据

Posted by 15914304086 at 2012-03-07 20:10:46 on Problem 2347 
2347 Accepted 256K 16MS C++ 3351B 2012-03-07 20:05:35 
5
x = y
x - y = 0

x = 2
2x = 4

0 = 0
y + x = x - y +8

-x = -y
x = y

1234x + 4567y = 7890
4321x + 7654y = 9876
---------------------------
don't know
don't know

2
don't know

don't know
4

don't know
don't know

-5095456/3429657
7301902/3429657

如果没有用，我也没办法了。
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