This code finds all ordered subsets of a set of items. Items can be real numbers or strings, and the set can be of any size.
For example, if the set of items is (1, 3, 2, 4), the code displays all ordered subsets as follows:
1,3
1,2
1,4
3,4
2,4
1,3,4
1,2,4
It the set of items is ("C","B","G","D","E","H","A","I","J","F"), the codes displays all ordered subsets as follows:
C,G
C,D
C,E
C,H
C,I
C,J
C,F
B,G
B,D
B,E
B,H
B,I
B,J
B,F
G,H
G,I
G,J
D,E
D,H
D,I
D,J
D,F
E,H
E,I
E,J
E,F
H,I
H,J
A,I
A,J
A,F
I,J
C,G,H
C,G,I
C,G,J
C,D,E
C,D,H
C,D,I
C,D,J
C,D,F
C,E,H
C,E,I
C,E,J
C,E,F
C,H,I
C,H,J
C,I,J
B,G,H
B,G,I
B,G,J
B,D,E
B,D,H
B,D,I
B,D,J
B,D,F
B,E,H
B,E,I
B,E,J
B,E,F
B,H,I
B,H,J
B,I,J
G,H,I
G,H,J
G,I,J
D,E,H
D,E,I
D,E,J
D,E,F
D,H,I
D,H,J
D,I,J
E,H,I
E,H,J
E,I,J
H,I,J
A,I,J
C,G,H,I
C,G,H,J
C,G,I,J
C,D,E,H
C,D,E,I
C,D,E,J
C,D,E,F
C,D,H,I
C,D,H,J
C,D,I,J
C,E,H,I
C,E,H,J
C,E,I,J
C,H,I,J
B,G,H,I
B,G,H,J
B,G,I,J
B,D,E,H
B,D,E,I
B,D,E,J
B,D,E,F
B,D,H,I
B,D,H,J
B,D,I,J
B,E,H,I
B,E,H,J
B,E,I,J
B,H,I,J
G,H,I,J
D,E,H,I
D,E,H,J
D,E,I,J
D,H,I,J
E,H,I,J
C,G,H,I,J
C,D,E,H,I
C,D,E,H,J
C,D,E,I,J
C,D,H,I,J
C,E,H,I,J
B,G,H,I,J
B,D,E,H,I
B,D,E,H,J
B,D,E,I,J
B,D,H,I,J
B,E,H,I,J
D,E,H,I,J
C,D,E,H,I,J
B,D,E,H,I,J