x i j 2
c 1
c 2
c n
A 1
{ s 1 ( 0.2 ) , s 2 ( 0.4 ) }
{ s 4 ( 0.7 ) }
{ s 3 ( 0.3 ) , s 4 ( 0.2 ) }
{ s 0 ( 0.2 ) , s 1 ( 0.4 ) }
A 2
{ s 0 ( 0.2 ) , s 1 ( 0.3 ) , s 3 ( 0.1 ) }
{ s 1 ( 0.3 ) , s 2 ( 0.1 ) }
{ s 2 ( 0.2 ) , s 3 ( 0.3 ) , s 4 ( 0.3 ) }
A 3
{ s 0 ( 0.2 ) , s 1 ( 0.3 ) }
{ s 0 ( 0.3 ) , s 1 ( 0.7 ) }
{ s 1 ( 0.4 ) , s 2 ( 0.3 ) }
{ s 2 ( 0.2 ) , s 3 ( 0.6 ) }
A m
{ s 1 ( 0.3 ) , s 2 ( 0.2 ) }
{ s 2 ( 0.3 ) , s 3 ( 0.6 ) }
{ s 2 ( 0.7 ) }
{ s 3 ( 0.7 ) , s 4 ( 0.2 ) }