Cycle Sort Algorithm - Sorting with Minimal Writes

Publicado em: 21 Agosto 2021
no canal de: Stephen Melvin

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446

The cycle sort algorithm is a sorting algorithm that uses the fact that any permutation is a product of disjoint cycles to sort an array with the minimum number of writes. I'm gonna use an example with cars to explain the idea. Then I'll write the code and explain how it works. I'll also show what happens in different cases, like if the input's already sorted, almost sorted or reversed.

Sorting Algorithms playlist: • Sorting Algorithms

00:00 Overview
00:36 Explaining with cars
05:12 Writing the cycle sort code
10:12 Stepping through the algorithm
11:24 Fixing two elements the same
13:18 Minimising the number of writes
15:36 Showing the already sorted case
16:17 Showing the reverse order case
17:49 Showing the large shuffled case
19:02 Showing the almost sorted case

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