misc. digit group
大多数的密码是字典里单词和数字组合。
Most passwords are a combination of dictionary words and possibly Numbers.
通配符掩码:例如,帐目编码必须由两个字母加任意数量的数字组成。
Wild card masks: For example, an account number must have two alphas followed by any number of numerics.
前者完全由数字组成,而后者混合使用字母和数字(当然还有其他区别)。
The former is made up entirely of Numbers, while the latter is a mix of letters and Numbers (among other differences).
I think one of the classic ones for strings is called the Rabin-Karp algorithm. And it's simply the same idea that you have a mapping from your import into a set of integers.
我认为字符串哈希,最经典的是Rabin-Karp算法,它只是简单的相同概念,你有一个映射关系将你的输入映射成一组数字。
So just to show you how big a difference it makes, let's run a couple of numbers.
让我们试试一组数字吧,如果n是1000的话。
You can either think of it as an arrow and imagine the arrow, or you can reduce it to a pair of numbers, x and y.
你既可以用有向线段来表示,也可以用一组数字来表示,x 和 y
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