Compress the String! ⬀
In this task, we would like for you to appreciate the usefulness of the groupby() function of itertools . To read more about this function, Check this out.
You are given a string S. Suppose a character 'c' occurs consecutively X times in the string. Replace these consecutive occurrences of the character 'c' with (X, c) in the string.
For a better understanding of the problem, check the explanation.
- A single line of input consisting of the string
S.
- A single line of output consisting of the modified string.
- All the characters of
Sdenote integers between0and9. 1 ≤ |S| ≤ 10⁴
1222311
(1, 1) (3, 2) (1, 3) (2, 1)
First, the character 1 occurs only once. It is replaced by (1, 1). Then the character 2 occurs three times, and it is replaced by (3, 2) and so on.
Also, note the single space within each compression and between the compressions.