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
所有跟帖:
• 9 -twfx- ♂ (241 bytes) () 04/15/2010 postreply 11:18:57
• 步驟2. 改為<99 -twfx- ♂ (0 bytes) () 04/15/2010 postreply 11:22:12
• Don't change,as 9+9=18 -jinjing- ♀ (0 bytes) () 04/15/2010 postreply 11:32:58
• Great. -jinjing- ♀ (0 bytes) () 04/15/2010 postreply 11:55:49
• 2)change 100 to 45. -jinjing- ♀ (0 bytes) () 04/15/2010 postreply 15:57:52
• 回複:9 -wxczcbm- ♂ (75 bytes) () 04/15/2010 postreply 20:36:00