The selection sort algorithm works by iterating through an array, finding the minimum/maximum value, and swapping it into the correct sorted position. It does this by keeping track of the index of the minimum/maximum value found on each pass. The number of passes is equal to the length of the array. In each pass, it finds the minimum/maximum value and swaps it into the current place, sorting the array further.

2.  The selection sort is a combination of searching
and sorting.
 In selection sort, sorting is done after selecting a
particular smallest or largest element from an
array and shifted it to a particular location in an
array.
 During each pass, the unsorted element with the
smallest (or largest) value is moved to its proper
position in the array.
 Let's look at our same table of elements using a
selection sort for ascending order:

3. Array 40 50 60 10 30 20
1-pass 10 50 60 40 30 20
2-pass 10 20 60 40 30 50
3-pass 10 20 30 40 60 50
4-pass 10 20 30 40 60 50
5-pass 10 20 30 40 50 60
 The number of times the sort passes through the
array is one less than the number of items in the
array.
 In the selection sort, the inner loop finds the next
smallest (or largest) value and the outer loop
places that value into its proper location.
 Lets watch a video which will give you a basic idea
of a selection sort.
 Please co-operate.

4.  Lets look at coding of it in c++:
 #include<iostream>
 using namespace std;
 void selectionsort(int *array,int length)
 {
 int i,j,min,minat,temp;
 for(i=0;i<(length-1);i++)
 {
 minat=i;
 min=array[i];
 for(j=0;j<length;j++)
 {
 if(min>array[j])
 {
 minat=j;
 min=array[j];
 }
 }
 temp=array[i];
 array[i]=array[minat];
 array[minat]=temp;
 }
 }

5.  void printelements(int *array,int length)
 {
 int i;
 for(i=0;i<length;i++)
 cout<<array[i]<<” “<<;
 }

6.  int main()
 {
 int array[100],n,i;
 cout<<”enter number of element you wants to enter in an array”;
 cin>>n;
 if(n<0)
 {
 cout<<”enter proper positive element”;
 cin>>n;
 }
 for(i=0;i<n;i++)
 {
 cout<<”enter values in array”;
 cin>>array[i];
 }
 selectionsort(array,n);
 printelement(array,n);
 return 0;
 }

7.  Any query?
 Any question or any point which you doesn’t get?