s[零]*31^(n-1) + s[1]*31^(n-2) + . + s[n-1] 用这种算法做hash
s[0]*31^(n-1) + s[1]*31^(n-2) + ... + s[n-1] 用这种算法做hash
s[0]*31^(n-1) + s[1]*31^(n-2) + ... + s[n-1]用这种算法做hash
怎么样?
怎么检测冲突?
当我是一段定长的字符串时候 比如说 10个字符的时候
冲突情况是怎么样的?
据说这个算法是 java的hashcode中的 不知道是不是 ? 我就发java版吧
------解决方案--------------------
海量数据的 hash 冲突是必然存在的,一般是在出现冲突时,采用顺序列表
如果你没有预留出现冲突时的存储空间,多半无解

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