c program for selection sort

#include<stdio.h>
int main()
{
int i,j,n,temp,a[20]
Printf("enter number of elements : ");
Scanf("%d",&n);
Printf(" enter the elements")
for(i=0;i<=n;i++)
scanf("%d",&a[i]);
for(i=0;i<n;i++)

{
for(j=i+1;j<n;j++)
{
if(a[i]>a[j])
{
temp=a[i];
a[i]=a[j];
a[j]=temp;
}
}
}
printf("after sorting : ");
for(i=0;i<n;i++)
printf("%d",a[i]);
return 0;
}