How to resolve the algorithm Sorting algorithms/Radix sort step by step in the J programming language

Published on 12 May 2024 09:40 PM
#J

How to resolve the algorithm Sorting algorithms/Radix sort step by step in the J programming language

Table of Contents

Problem Statement

Sort an integer array with the   radix sort algorithm. The primary purpose is to complete the characterization of sort algorithms task.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Sorting algorithms/Radix sort step by step in the J programming language

Source code in the j programming language

radixSortR =: 3 : 0  NB. base radixSort data
16 radixSortR y
:
keys =. x #.^:_1 y NB. compute keys
length =. #{.keys
extra =. (-length) {."0 buckets =. i.x
for_pass. i.-length do.
   keys =. ; (buckets,pass{"1 keys) <@:}./.extra,keys
end.
x#.keys NB. restore the data
)


radixsort=: (] #~ [: +/ =/) i.@(>./)


   radixsort ?.@#~10
4 5 6 6 6 6 6 8 8


rsort=: (] + radixsort@:-) <./


   rsort _6+?.@#~10
_2 _1 0 0 0 0 0 2 2

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