回复：第一题说明

This is simply bits operation. Initailize every bit to 0, check the bit value changed. If I remember the paging in OS correctly, we manage the dirty pages like this.

所有跟帖： 

• 不错不错。 -feicen- ♀ (0 bytes) () 05/09/2009 postreply 17:54:16

• 能否详细说明一下，或者给出伪代码?学习学习 -feicen- ♀ (0 bytes) () 05/09/2009 postreply 17:56:43

• 回复：能否详细说明一下，或者给出伪代码?学习学习 -GoldIsGold- ♀ (449 bytes) () 05/09/2009 postreply 18:28:15

• 有待仔细考虑。尤其是对＂big hotel＂的case，有huge number of rooms. -戏雨飞鹰- ♀ (66 bytes) () 05/10/2009 postreply 11:48:07

• 楼上２位好厉害！PF：）。 -戏雨飞鹰- ♀ (0 bytes) () 05/09/2009 postreply 17:58:30

• yeah, this is good -hello2- ♂ (0 bytes) () 05/09/2009 postreply 18:40:40

• 回复：回复：第一题说明 -spear123- ♂ (216 bytes) () 05/10/2009 postreply 18:06:06