describe selection sort code example
Example 1: selection sort
#include <bits/stdc++.h>
using namespace std;
void selectionSort(int arr[], int n){
int i,j,min;
for(i=0;i<n-1;i++){
min = i;
for(j=i+1;j<n;j++){
if(arr[j] < arr[min]){
min = j;
}
}
if(min != i){
swap(arr[i],arr[min]);
}
}
}
int main()
{
int arr[] = { 1,4,2,5,333,3,5,7777,4,4,3,22,1,4,3,666,4,6,8,999,4,3,5,32 };
int n = sizeof(arr) / sizeof(arr[0]);
selectionSort(arr, n);
for(int i = 0; i < n; i++){
cout << arr[i] << " ";
}
return 0;
}
Example 2: selection sort
#include <iostream>
using namespace std;
void swap(int*,int*);
void selection_sort(int arr[],int n)
{
for(int i=0;i<n-1;i++)
{
for(int j=i+1;j<n;j++)
{
if(arr[i]>arr[j])
{
swap(&arr[i],&arr[j]);
}
}
}
}
void display(int arr[],int n)
{
for(int i=0;i<n;i++)
{
cout<<arr[i]<<" ";
}
cout<<endl;
}
int main()
{
int n;
cout<<"enter the size of the array:"<<endl;
cin>>n;
int array_of_numbers[n];
cout<<"enter the elements of the array:"<<endl;
for(int i=0;i<n;i++)
{
cin>>array_of_numbers[i];
}
cout<<"array as it was entered"<<endl;
display(array_of_numbers,n);
cout<<"array after sorting:"<<endl;
selection_sort(array_of_numbers,n);
display(array_of_numbers,n);
return 0;
}
void swap(int *a,int *b)
{
int temp=*a;
*a=*b;
*b=temp;
}