80% ZT:
If N=987605,then A=9+8+7+6+0+5=39, B=3+9=12 and C=1+2=3,D=3,....
Question: N=2010!, Find C.
Funny Opration
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9
-twfx-
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04/15/2010 postreply
11:18:57
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步骤2. 改为<99
-twfx-
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04/15/2010 postreply
11:22:12
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Don't change,as 9+9=18
-jinjing-
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04/15/2010 postreply
11:32:58
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Great.
-jinjing-
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04/15/2010 postreply
11:55:49
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2)change 100 to 45.
-jinjing-
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04/15/2010 postreply
15:57:52
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回复:9
-wxczcbm-
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04/15/2010 postreply
20:36:00