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终于AC了,可是还是不明白,为什么输入0要输出“NO”可是是输入4却要输出“YES”,0=0!,4=2!+1!+0!呀!!!

Posted by dongshanluo at 2006-08-13 11:00:00 on Problem 1775
In Reply To:Why wrong?实在找不出了 Posted by:dongshanluo at 2006-08-13 10:10:22
4
YES
0
NO
409114
YES
409113
YES

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