C code for deleting duplicate elements in an array

C Program to delete duplicate elements in an array
//C code for removing repeated values of an array

#include<stdio.h>
int main()
{
int a[20],i,j,k,n;

printf("\nnEnter array size : ");
scanf("%d",&n);

printf("\nnAccept Numbers : ",n);
for(i=0;i<n;i++)
scanf("%d",&a[i]);


printf("\nnOriginal array is : ");
for(i=0;i<n;i++)
printf(" %d",a[i]);

printf("\nnUpdated array is  : ");
for(i=0;i<n;i++)
{
   for(j=i+1;j<n;)
   {
      if(a[j]==a[i])
      {
         for(k=j;k<n;k++)
{
             a[k]=a[k+1];
}
          n--;//else array will contain 0 in deleted duplicate value
      }
      else
         j++;
   }
}

for(i=0;i<n;i++)
    printf("%d \t",a[i]);
printf("\n");
}
/*
array size : 5
Numbers : 22
33
44
44
22
array is :  22 33 44 44 22
array is  : 22         33      44

*/