We have a string we have to return the minimum length of string for which tra saction id is made

Question

like if we give the input zbzczbz in this case minimum length is 2 because zb having a character which is present in zc and so on...
some examples:-
input-zbzczbz
output-2
input-bbbbbb
output-1
input-zbczxaz
output -3
input-zbcde
output-3
in last case output is 3 because c is the character which is preseng in both zbc and cde so yhe length is 3.

Answer 1

I did not understand your question. Can you explain more clearly?