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72=(5!-4!*2)

jinjing 2010-04-15 13:26:38 ( reads)

Thank you.

跟帖(6)

SwiperTheFox

2010-04-16 09:44:10

This seems to be the best solution, can you reveal details?

jinjing

2010-04-17 05:17:39

Thanks.

皆兄弟也

2010-04-16 12:19:17

details? please!

jinjing

2010-04-16 16:00:53

回复：details? please!

皆兄弟也

2010-04-16 20:55:59

2*4!可以理解，5!仍不太明白。anyway, thank you!

jinjing

2010-04-17 05:43:11

回复：2*4!可以理解，5!仍不太明白。anyway, thank you!