How about ( (A+B) - abs(A-B) ) / 2 ?

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• 回复：How about ( (A+B) - abs(A-B) ) / 2 ? -sub101- ♂ (71 bytes) () 02/13/2008 postreply 13:00:50

• Why? 咱咋没找到反例？ -techy- ♀ (0 bytes) () 02/13/2008 postreply 14:47:22

• 回复：(5+2)/2=3 -sub101- ♂ (38 bytes) () 02/13/2008 postreply 14:53:55

• 可咱把你的除2移到最后了，加减出来的肯定是偶数 -techy- ♀ (86 bytes) () 02/13/2008 postreply 15:04:31

• 回复：You are absolutely right! -sub101- ♂ (0 bytes) () 02/13/2008 postreply 15:08:07

• ZT: You are absolutely right! -戏雨飞鹰- ♀ (0 bytes) () 02/13/2008 postreply 16:48:05