how to compress and delete the same values in vector?

i have two vector in which the values are repeated.

in first i want to delete the repeated values such as

A=[1,2,3,3,3,4,5,6,6,7,7,8,9]
Awant=[1,2,3,4,5,6,7,8,9]

and in the second vector i want the repeated values to be counted only once and the others are zero

B=[1,2,3,3,3,4,4,5,5,6,6,7,8,9]
Bwant=[1,2,0,0,3,0,4,0,5,0,6,7,8,9]

or else a index matrix will also be good

Bwant=[1,1,0,0,1,0,1,0,1,0,1,1,1,1]

Thanks in advance

Answer 1

[madhan ravi]

>> A=[1,2,3,3,3,4,5,6,6,7,7,8,9];
   Awant=unique(A)
   B=[1,2,3,3,3,4,4,5,5,6,6,7,8,9];
   [~,c,~]=unique(B,'last');
   B1=zeros(1,numel(B));
   B1(c)=B(c);
   B1(~c)=0
Awant =
     1     2     3     4     5     6     7     8     9
B1 =
  Columns 1 through 13
     1     2     0     0     3     0     4     0     5     0     6     7     8
  Column 14
     9
>>