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Homeby Witness Moecki
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baiyunping333 (25)

230 followers1 post26 following3 SP#1,054,853

Joined January 2018 Active 7 years ago

  • baiyunping333 (25)in #cn • 7 years ago

    hash函数为什么要选择对素数求余

    常用的hash函数是选一个数m取模(余数),这个数在课本中推荐m是素数, 但是经常见到选择m=2^n,因为对2^n求余数更快,并认为在key分布均匀的情况下,…
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