GOT[求购]10 Huggies coupon $1.5 off any pack - 未名空间MITBBS历史存档

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GOT[求购]10 Huggies coupon $1.5 off any pack

GOT[求购]10 Huggies coupon $1.5 off any pack# PennySaver - 省钱一族

s*g2011-09-15 07:09

1 楼

Reverse bits of a given 32 bits unsigned integer.
For example, given input 43261596 (represented in binary as
00000010100101000001111010011100), return 964176192 (represented in binary
as 00111001011110000010100101000000).
Follow up:
If this function is called many many times, how would you optimize it?
这个followup应该怎么解决呢？之前其他的题也被问过类似的问题。谢谢

T*y2011-09-15 07:09

2 楼

不建议交易打印胖子；胖子是免费的，收费的是服务:
所求物品名称:
10 Huggies coupon $1.5 off any pack
物品类别（coupon: mfc 等；血糖仪等）:
Fine if you have less than 10 pcs. Let me know.
物品来源（报纸夹页，厂家邮寄等）:
what ever
可接受的价格（必须明码标价，必填）:
paypal or baozi, you choose
邮寄损失方式哪方承担（若需邮寄，必填）:
付款方式说明:
paypal or baozi, you choose
本贴有效期（必填）:
today or tomorrow
联系方式（例：站内）:
mitbbs

b*52011-09-15 07:09

3 楼

我想是precalculation，然后存hashtable， key是integer， value就是reversed的
integer

【在 s***g 的大作中提到】

: Reverse bits of a given 32 bits unsigned integer.
: For example, given input 43261596 (represented in binary as
: 00000010100101000001111010011100), return 964176192 (represented in binary
: as 00111001011110000010100101000000).
: Follow up:
: If this function is called many many times, how would you optimize it?
: 这个followup应该怎么解决呢？之前其他的题也被问过类似的问题。谢谢