#define N 30
main()
{ int a[N], i, j, k, n; n=N;
for(i=0; i<n; i++ ) scanf ( "%d", &a[i] );
for (i=0; i<n-1; i++ )
for (___________; j< n; j++ )
if (a[i]= = a[j] )
{ for(k = j; k<n; k++ )
_____________ ; /*删除*/
____________;
n--; /* 删除后,将数组元素的总数减1*/
}
for ( i=0; i<n; i++ ) printf("%8d", a[i] );
}