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Testing Sort algorithms -Insertion & Quicksort . Tested with Sorted,ReverseSorted and Random suites of n=2^3 to 2^8. Results show that insertionsort beats quicksort for lower n and things change between n = 64 to 256
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/* | |
Testing Sort algorithms -Insertion & Quicksort . Tested with Sorted,ReverseSorted and Random suites of n=2^3 to 2^8. Results show that insertionsort beats quicksort for lower n and things change between n = 64 to 256 | |
---Testing with n=8--- | |
QuickSort(sorted,reversesorted,random): 5322 11 6 | |
InsertionSort(sorted,reversesorted,random): 1745 4 3 | |
---Testing with n=16--- | |
QuickSort(sorted,reversesorted,random): 30 19 19 | |
InsertionSort(sorted,reversesorted,random): 13 11 8 | |
---Testing with n=32--- | |
QuickSort(sorted,reversesorted,random): 38 36 36 | |
InsertionSort(sorted,reversesorted,random): 16 31 20 | |
---Testing with n=64--- | |
QuickSort(sorted,reversesorted,random): 45 56 61 | |
InsertionSort(sorted,reversesorted,random): 13 62 42 | |
---Testing with n=128--- | |
QuickSort(sorted,reversesorted,random): 111 161 175 | |
InsertionSort(sorted,reversesorted,random): 25 331 149 | |
---Testing with n=256--- | |
QuickSort(sorted,reversesorted,random): 152 230 295 | |
InsertionSort(sorted,reversesorted,random): 21 1077 720 | |
*/ | |
using System; | |
using System.Diagnostics; | |
using Sorting;//https://github.com/antonydeepak/Practical_DSA/tree/master/basic_algorithms | |
delegate void SortFunction(int[] list); | |
class SortTester | |
{ | |
static void Main(){ | |
Console.WriteLine(); | |
Tuple<string,string,string> elapsedTimes; | |
for(int i=8;i<257;i=i<<1) | |
{ | |
Console.WriteLine("---Testing with n={0}---",i); | |
elapsedTimes = TestSort(QuickSorted.QuickSort,i); | |
Console.WriteLine("QuickSort(sorted,reversesorted,random): {0} {1} {2}",elapsedTimes.Item1,elapsedTimes.Item2,elapsedTimes.Item3); | |
elapsedTimes = TestSort(InsertionSorted.InsertionSort,i); | |
Console.WriteLine("InsertionSort(sorted,reversesorted,random): {0} {1} {2}",elapsedTimes.Item1,elapsedTimes.Item2,elapsedTimes.Item3); | |
Console.WriteLine(); | |
} | |
} | |
static Tuple<string,string,string> TestSort(SortFunction sf,int n){ | |
int[] sorted = CreateSorted(n); | |
int[] rsorted = CreateReverseSorted(n); | |
int[] random = CreateRandom(n); | |
string sortedTime = TimeFunction(sf,sorted); | |
string rSortedTime = TimeFunction(sf,rsorted); | |
string randomTime = TimeFunction(sf,random); | |
return new Tuple<string,string,string>(sortedTime,rSortedTime,randomTime); | |
} | |
static string TimeFunction(SortFunction func,int[] list){ | |
Stopwatch timer = new Stopwatch(); | |
timer.Start(); | |
func(list); | |
timer.Stop(); | |
TimeSpan elapsed = timer.Elapsed; | |
return elapsed.Ticks.ToString(); | |
} | |
static int[] CreateSorted(int n){ | |
int[] sorted = new int[n]; | |
int count=0; | |
int i=-(n/2); | |
while(count<n){ | |
sorted[count] = i; | |
count++; | |
i++; | |
} | |
return sorted; | |
} | |
static int[] CreateReverseSorted(int n){ | |
int[] sorted = new int[n]; | |
int count=0; | |
int i=-(n/2); | |
while(count<n){ | |
sorted[n-count-1] = i; | |
count++; | |
i++; | |
} | |
return sorted; | |
} | |
static int[] CreateRandom(int n){ | |
int[] random = new int[n]; | |
Random r = new Random(); | |
int count=0; | |
while(count < n){ | |
random[count] = r.Next(); | |
count++; | |
} | |
return random; | |
} | |
} |
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