radix sort

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  • Info In computer science, radix sort is a non-comparative integer sorting algorithm that sorts data with integer keys by grouping keys by the individual digits which share the same significant position and value. more...
  • The best case for radix sort is that they are taken as consecutive bit patterns.
  • This idea can be extended to any number of keys, and is leveraged by radix sort.
  • This is called a least significant digit radix sort.
  • Radix sort, such as two pass method where counting sort is used during the first pass of each level of recursion, has a large constant overhead.
  • This algorithm is based on radix sorting and has the following steps.
  • For more restricted data, such as numbers in a fixed interval, distribution sorts such as counting sort or radix sort are widely used.
  • It is a distribution sort, and is a cousin of radix sort in the most to least significant digit flavour.
  • A simple version of an LSD radix sort can be achieved using queues as buckets.
  • MSD radix sorts work the other way around.
  • Some MSD radix sorts use one level of buckets in which to group the keys.
  • It is common for the counting sort algorithm to be used internally by the radix sort.
  • Neither in-place binary-radix sort nor n-bit-radix sort, discussed in paragraphs above, are stable algorithms.
  • A hybrid sorting approach, such as using insertion sort for small bins improves performance of radix sort significantly.
  • Instead of using radix sorting, it uses hashing to compute L i 's and their intersections.
  • In-place MSD binary-radix sort can be extended to larger radix and retain in-place capability.
  • Top-down radix sort can be seen as a special case of bucket sort where both the range of values and the number of buckets is constrained to be a power of two.
  • In many large applications needing speed, the computer radix sort is an improvement on (slower) comparison sorts.
  • LSD radix sorts process the integer representations starting from the least digit and move towards the most significant digit.
  • Whether radix sort is equally efficient, less efficient or more efficient than the best comparison-based algorithms depends on the details of the assumptions made.
  • An American flag sort is an efficient, in-place variant of radix sort that distributes items into hundreds of buckets.
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