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+A-

I'll give the answer in the next couple days.

皆兄弟也 2010-06-07 18:45:32 ( reads)

The method rather than the result is very interesting.

跟帖(2)

jinjing

2010-06-08 14:36:55

0.0026355 is the exact answer,if I do well.

皆兄弟也

2010-06-09 00:20:27

maybe, you are right. My answer is 0.0026544, but not confident