Given a positive integer, count its odd digits.

Input

• An integer from 1 to 999,999,999, inclusive, in any of the following formats:
  • A number (such as an integer or floating point number), like 123.
  • A string, like "123".
  • A sequence of characters (such as an array or list), like ['1', '2', '3'].
  • A sequence of single digit numbers, like [1, 2, 3].

Output

• The number of odd digits in the input.

Test cases

Test cases are in the format input : output.

1 : 1
2 : 0
3 : 1
4 : 0
5 : 1
6 : 0
7 : 1
8 : 0
9 : 1
10 : 1
11 : 2
12 : 1
13 : 2
14 : 1
15 : 2
16 : 1
17 : 2
18 : 1
19 : 2
20 : 0
111111111 : 9
222222222 : 0
123456789 : 5
999999999 : 9

Scoring

This is a code golf challenge. Your score is the number of bytes in your code. Lowest score for each language wins.

Explanations are optional, but I'm more likely to upvote answers that have one.

posted 3 months ago

CC BY-SA 4.0

3mo ago

trichoplax‭

1020 reputation 83 17 129 471