Problem Name: Python -
In this HackerRank Functions in PYTHON problem solution,
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 S denote integers between 0 and 9.
1 <= |S| <= 10**4
(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.
#1 Code Example with Python Programming
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from itertools import groupby ls = list(input()) ls_new = [list(g) for k, g in groupby(ls)] [print((len(elem), int(elem)), end =' ') for elem in ls_new]