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What is the function of merging and sorting? Many novices are not very clear about this. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can gain something.

Merge sorting is an effective sorting algorithm based on merge operation, which can be used to calculate the reverse logarithm of each interval in the process of merging, and to calculate the reverse logarithm of each interval, and then calculate the reverse logarithm of large interval.

Merge sorting (MERGE-SORT) is an effective sorting algorithm based on merge operation, which is a very typical application of divide-and-conquer (Divide and Conquer). The ordered subsequences are merged to get a completely ordered sequence, that is, each subsequence is ordered first, and then the subsequence segments are ordered. If two ordered tables are merged into one ordered table, it is called two-way merging. Merge sorting is a stable sorting method.

Use

Sort

(the speed is second only to fast sorting, and it is a stable sorting algorithm, which is generally used for sequences that are generally out of order but whose subitems are relatively orderly. For the application, see "Swiss Round" in question 3 of the 2011 popular semi-finals.)

Find the inverse logarithm

The specific idea is to calculate the reverse logarithm of each interval in the process of merging, and then calculate the reverse logarithm of the large interval (which can also be solved by a tree array).

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