HackerRank Python - 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 .

  1. # Enter your code here. Read input from STDIN. Print output to STDOUT
  2. from itertools import groupby
  3. for key, group in groupby(input()):
  4. print((len(list(group)), int(key)), end=' ')

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