selection sort in an array

#include<stdio.h>
#define MAX 20
int main()
{
     int a [MAX];
     int i,j,n,temp;
     printf("enter no. of elements:");
     scanf("%d",&n);
     printf("enter the elements\n");
     for(i=0;i<n;i++)
     {
         scanf("%d",&a[i]);
     }
     //sorting
     for(i=0;i<n-1;i++)
     for(j=i+1;j<n;j++)
     {
     if(a[i]>a[j])
     {              
         temp=a[i];
         a[i]=a[j];
         a[j]=temp;
     }
     }
     printf("sorted elements in ascending order:\n");
     for(i=0;i<n;i++)
     {
        printf("%5d",a[i]);
     }
     getch();
     return 0;
}