From: http://blog.csdn.net/zxycode007/article/details/6999984
Hash list, which is based onQuick accessIs also a typical"Space Change Time. As the name suggests, this data structure can be understood as a linear table, but the elements in it are not
Reprinted from: http://blog.csdn.net/zxycode007/article/details/6999984
Hash list, which is based onQuick accessIs also a typical"Space Change Time. As the name suggests, this data structure can be understood as a linear table, but the elements in
Hash table, which is based on the high-speed access point of view design, but also a typical " space-time " approach. As the name implies, the data structure can be understood as a linear table, but the elements are not tightly arranged, but there
Summary of research on hash table and hash functionWith the increasing of information level, the data has been replaced computing as the center of Information Computing, the demand for storage has been increasing the volume of explosive growth trend,
Hash table, which is based on the high-speed access point of view design, but also a typical " space-time " approach. As the name implies, the data structure can be understood as a linear table, but the elements are not tightly arranged, but there
The hash table, which is based on the fast access angle design, is also a typical " space-time " approach. As the name implies, the data structure can be understood as a linear table, but the elements are not tightly arranged, but there may be
Hash table, also known as the hash table, is based on a fast access point of view design, but also a typical " space-time " approach. As the name implies, the data structure can be understood as a linear table, but the elements are not tightly
Hash
Hash, the general translation to do "hash", there is a direct transliteration of "hash", is the arbitrary length of the input (also known as pre-mapping, pre-image), through the hash algorithm, transformed into a fixed-length output,
a hash table, also known as a hash table, is a data structure that is accessed directly from a key value. That is, it accesses records by mapping key code values to a location in the table to speed up lookups. This mapping function is called a hash
Script Function
The script is written in Perl to calculate the MD5 value of the file.
Script usage
After installing the operating system, the server calculates the MD5 values of all the binary files in the PATH variable, calculates the MD5 values of
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