TI BASIC, 4645 Bytes

Prompt A,B,C
ABC
If A=B
C
If A=C
B
If B=C
A
If A=B and A=C
1
Disp Ans

TI BASIC, 46 Bytes

Prompt A,B,C
ABC
If A=B
C
If A=C
B
If B=C
A
If A=B and A=C
1
Disp Ans

Prompt A,B,C
ABC
If A=B
C
If A=C
B
If B=C
A
If A=B and A=C
1
Ans

added 5 characters in body

Source Link

edited Feb 12, 2020 at 19:07

Prompt A,B,C
ABC
If A=B
C
If A=C
B
If B=C
A
If A=√(BCA=B and A=C
1
Disp Ans

Aside from the typical Ans shenanigans, A=√(BC is a handy shortcut for A=B and A=C in this scenario

Prompt A,B,C
ABC
If A=B
C
If A=C
B
If B=C
A
If A=√(BC
1
Disp Ans

Aside from the typical Ans shenanigans, A=√(BC is a handy shortcut for A=B and A=C in this scenario

Prompt A,B,C
ABC
If A=B
C
If A=C
B
If B=C
A
If A=B and A=C
1
Disp Ans

Source Link

created Feb 12, 2020 at 15:41

Prompt A,B,C
ABC
If A=B
C
If A=C
B
If B=C
A
If A=√(BC
1
Disp Ans

Aside from the typical Ans shenanigans, A=√(BC is a handy shortcut for A=B and A=C in this scenario