check if a number in a cell has duplicate digits

[jimblimm]

in
a1
1234

a2
1123

a3
2244

a4
4443

a5
5555

i am trying to come up with a formula that will do the following
if the number in cell a1 has no duplicates, b1="s"
if the number in cell a1 has 1 duplicate, it should "1d"
if the number in cell a1 has 2 duplicate, it should "2d"
if the number in cell a1 has 3 duplicate, it should "tc"
if the number in cell a1 has all duplicate, it should "qc"

what im expecting is
b1=s
b2=1d
b3=2d
b4=tc
b5=qc

 

[shg]

=LOOKUP(SUMPRODUCT(LARGE(FREQUENCY(--MID(A1, {1,2,3,4}, 1), {0,1,2,3,4,5,6,7,8,9}), {1,2}), {10,1}), {11,21,22,31,40}, {"s","1d","2d","tc","qc"})

 

[jimblimm]

WOW, i started to post in previous post, but thought it would be something different.
question, (in reference to the sorting post) is there a way to do the same thing alphabetically

a1
hlhl

=

b1 hhll

 

[drsarao]

WOW, i started to post in previous post, but thought it would be something different.
question, (in reference to the sorting post) is there a way to do the same thing alphabetically

A bit late.
This will work:

=LOOKUP(SUMPRODUCT(LARGE(FREQUENCY(CODE(UPPER(MID(A1, {1,2,3,4}, 1)))-65, {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,18,19,20,21,22,23,24,25}), {1,2}), {10,1}), {11,21,22,31,40}, {"s","1d","2d","tc","qc"})