RosettaCodeData/Task/Compare-sorting-algorithms-.../00-TASK.txt

32 lines
1.5 KiB
Plaintext

{{Sorting Algorithm}}
Measure a relative performance of sorting algorithms implementations.
Plot '''execution time vs. input sequence length''' dependencies for various implementation of sorting algorithm and different input sequence types ([[#Figures: log2( time in microseconds ) vs. log2( sequence length )|example figures]]).
Consider three type of input sequences:
:*   ones: sequence of all ''1'''s.   Example: {1, 1, 1, 1, 1}
:*   range: ascending sequence, i.e. already sorted.   Example: {1, 2, 3, 10, 15}
:*   shuffled range: sequence with elements randomly distributed.   Example: {5, 3, 9, 6, 8}
Consider at least two different sorting functions (different algorithms or/and different implementation of the same algorithm).
For example, consider [[Bubble Sort]], [[Insertion sort]], [[Quicksort]] or/and implementations of Quicksort with different pivot selection mechanisms.   Where possible, use existing implementations.
Preliminary subtask:
:*   [[Bubble Sort]], [[Insertion sort]], [[Quicksort]], [[Radix sort]], [[Shell sort]]
:*   [[Query Performance]]
:*   [[Write float arrays to a text file]]
:*   [[Plot x, y arrays]]
:*   [[Polynomial Fitting]]
General steps:
:#   Define sorting routines to be considered.
:#   Define appropriate sequence generators and write timings.
:#   Plot timings.
:#   What conclusions about relative performance of the sorting routines could be made based on the plots?
<br><br>