What we choose is never what we really need.

4/14/2020

A Quick Guide To Selection Sorting



In this Article I'll tell you about Selection Sort
Selection sort is that type of sorting in which smallest element of a list is searched and then this number is swapped with the first element of the list and then second smallest element is searched in the list and is swapped with the second element of the list and so on i,e this "thingy" thing continues on till n-1 times (where 'n' is the number of terms).
COMPLEXITY:-
Complexity of Selection sort is O(n^2) in best case as well as in worst case.

Well selection sort is not a good sorting algorithm which you can see even from the complexity of selection sort because selection sort performs same number of comparisons even in the best case as in the worst case. Which makes it very slow.
Pseudo-code:-
sort(Arr)
for i = 0 to n-1
smallest = location of smallest number from Arr[i] to Arr[n-1]
swap Arr[i] with Arr[smallest]

/*C Program: Implementation of Selection Sort*/
#include<stdio.h>
void swap(int a[], int i, int j){
    int tmp = a[i];
    a[i] = a[j];
    a[j] = tmp;
}
void selectionSort(int a[], int l, int h){
   for(int i=l; i<h; i++){
     int small  = i;
     for(int j=i+1; j<=h; j++){
       if(a[j] < a[i]) small = j;
     }
     swap(a,i,small);
   }
}
int main(void) {
   int arr[10], n;
   printf("Enter Size of Array: ");
   scanf("%d", &n);
   printf("Enter %d elements:\n", n);
   for(int i=0; i<n; i++) scanf("%d", &arr[i]);
   selectionSort(arr, 0, n-1);
   printf("Sorted Array is as:\n");
   for(int i=0; i<n; i++) printf("%d ", arr[i]);
   printf("\n");
   return 0;
}

Related news


  1. Hacking Tools For Windows
  2. Growth Hacker Tools
  3. Hacking Tools For Windows
  4. Nsa Hack Tools Download
  5. Hacker Tools 2020
  6. Pentest Tools Port Scanner
  7. Pentest Tools Subdomain
  8. Hacker Tools For Windows
  9. Tools Used For Hacking
  10. Hacker Security Tools
  11. Hacker Tools For Windows
  12. Pentest Tools Alternative
  13. Hack Tools For Pc
  14. Hacker Tools Free Download
  15. Free Pentest Tools For Windows
  16. Termux Hacking Tools 2019
  17. Pentest Tools Open Source
  18. Growth Hacker Tools
  19. Hack Tools
  20. How To Hack
  21. Hacker Tools
  22. Hacker Tools 2020
  23. Termux Hacking Tools 2019
  24. Hacking Tools And Software
  25. Hacker Tools Free Download
  26. Hacking Tools Name
  27. Install Pentest Tools Ubuntu
  28. Hacker Security Tools

No comments: