a&b=c given c and b how do I get back to a


a&b=c 已知c和b 怎么还原得到a啊
请大佬们指点T_T

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ctrl61 注册会员
2023-02-28 20:34

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hope to adopt

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djzhao76 注册会员
2023-02-28 20:34

)) b = int( input ( "Please enter value of b: " )) a = c - b print ( "The value of a is:" , a) .

< !- - - - - >

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dangxiaobo424 注册会员
2023-02-28 20:34

This doesn't solve for a, because when b has a 0 bit and c has a 0 bit, you don't know if a has a 0 bit or a 1 bit, because either works.

So there are many values for a

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dishasi 注册会员
2023-02-28 20:34

< div class = "how e397 data - v - 3967" = "" >

if you want to ask any, a = c - b

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dishasi 注册会员
2023-02-28 20:34

& Isn't this a bit and operation, just calculate a=c^b,
Explain:
Suppose that ampersand; It's a bit and, so a & The result of b is the result of adding and bits of a and b. So if we have b and c, we can add b and c bit by bit to get d, and then we can xor d and b to get a.