Count of different numbers in one long number

Question

How can I count how many different numbers there are in one long number?

For example: this number 1122334455 has 5 different numbers.

How can I do that in Python?

possible duplicate of [Count unique digits one liner (efficiently)](http://stackoverflow.com/questions/10752434/count-unique-digits-one-liner-efficiently) — Ashwini Chaudhary, May 02 '14 at 10:59
You should change the term `different numbers` to `different decimal digits` (assuming that's what you actually want to count). — barak manos, May 02 '14 at 11:05

score 4 · Accepted Answer · edited Jun 20 '20 at 09:12

4

You can do that as:

print len(set(str(s)))

The str() casts the int as a string
The set() takes the unique elements of the string and creates a set of it
The len() returns the length of the set

Examples

>>> print len(set(str(s)))
5

s = 1324082304

>>> print len(set(str(s)))
6

edited Jun 20 '20 at 09:12

Community

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answered May 02 '14 at 10:53

sshashank124

31,495
9
67
76

+1 because you added the explanation. – ρss May 02 '14 at 10:57
@pss, Thank you. What goods an answer to the OP if the OP is not clear what it does, right? :) – sshashank124 May 02 '14 at 10:58
@Downvoter, Anything wrong with my answer? Please let me know so that I can improve it. Thank you – sshashank124 May 02 '14 at 11:00
Downvoter is probably the one that doesn't understand your answer or python :P – ρss May 02 '14 at 11:01
I often find myself puzzled as to why some members of this website choose to down-vote certain answers for no good reason. Here is +1 from me... – barak manos May 02 '14 at 11:02
@barakmanos, I suppose its fine. They probably had a reason (or a grudge against me :)) – sshashank124 May 02 '14 at 11:03
My program gets numbers like this: 04166666666666667. When this number become string it changes to a different number. – Skizo May 02 '14 at 11:06
Thats an octal number – wim May 02 '14 at 11:07
@Skizo, Why are you getting numbers starting with 0. The reason your string changes is because python considers it an octal (base-8) number – sshashank124 May 02 '14 at 11:07
@Skizo, Did that solve your problem? – sshashank124 May 02 '14 at 11:30

Count of different numbers in one long number

1 Answers1

Examples